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![Page 1: Board Review: Pediatrics](https://reader038.fdocuments.net/reader038/viewer/2022103109/5450b622af795929148b4b71/html5/thumbnails/1.jpg)
PEDIATRICS BOARD REVIEWEDWARD M. SANTOS, MDDEPARTMENT OF PEDIATRICSUERMMMC
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1. WHICH OF THE FOLLOWING IS NOT A COMPONENT OF TETRALOGY OF FALLOT?
a.Atrial septal defectb.Ventricular septal defectc.Pulmonary stenosisd.Overriding aorta
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TETRALOGY OF FALLOT
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TOF Dyspnea is relieved by squatting Paroxysmal hypercyanotic attacks (hypoxic,
“blue”, or “tet” spells Place infant on the abdomen in knee chest position Oxygen Morphine sq not in excess of 0.2mg/k NaHCO3 if spell is unusually severe Other meds: IV phenylephrine, propranolol
Systolic thrill and murmur On CXR- boot or wooden shoe (coeur en sabot) Blalock-Taussig shunt (subclavian and ipsilateral
PA) and Gore-Tex interposition shunt TAPVR - Snowman appearance
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2. A 6-MONTH OLD BABY WAS BROUGHT TO THE ER BECAUSE OF DOB. ON PE, SHE WAS TACHYPNEIC,, WITH RALES AND NOTE OF A GR 3/6 HOLOSYSTOLIC MURMUR ON THE LLSB. CXR SHOWED CONGESTION AND CARDIOMEGALY LV FORM. ABG SHOWED PO2 OF 175 OFF OXYGEN. THE MOST LIKELY CARDIAC LESION IS:
a.Pulmonary stenosisb.Atrial septal defectc.Ventricular septal defectd.Transposition of the great arteries
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RECALL Congenital Heart Diseases Acyanotic vs Cyanotic Acyanotic
Increased volume load L R shunting (ASD, VSD, PDA, AV septal
defects) Increased pressure load
Normal blood flow is obstructed (pulmonic stenosis, etc)
Cyanotic Decreased pulmonary blood flow
Obstruction and a shunt (ex. TOF) Increased pulmonary blood flow
Not associated with obstruction but with abnormal mixing of systemic venous and pulmonary venous blood ( ex TGA)
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RECALL
No cyanosis (+) congestion Increased volume load decreased
pulmonary compliance increased work of breathing
Acyanotic CHD with increased volume load VSD
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Tools in the Assessment of Heart Disease
FIVE BASIC QUESTIONS
1. Is the patient cyanotic or acyanotic?2. Is the pulmonary arterial flow increased or not ?3. Does the malformation originate in the
left or right side of the heart?4. Which is the dominant ventricle? 5. Is pulmonary hypertension present or
not ?
HISTORYPHYSICAL EXAM
CHEST X- Ray
EKG (15 lead)
Others: 2D EchoCardiac cath
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PHYSIOLOGIC CLASSIFICATION OF CONGENITAL HEART DISEASE
CYANOTICCYANOTICACYANOTICACYANOTIC
Increased PBF
Normal orDecreased PBF
No SHUNT
RVH LVH
PS AS
With SHUNT
RVH LVH
ASD VSD/PDAAP- Window
Increased PBF
Decreased PBF
RVH BVH
TGATAPVR
TRUNCUS
RVH LVH
TOF/DORVEBSTEIN
PVA
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VENTRICULAR SEPTAL DEFECT
Most common form of CHD (25% of CHDs) Most defects are of the membranous type Size of the VSD is a major determinant of the
LR shunt Restrictive VSDs= < 0.5cm2, RV pressure is
N, shunt is LR Non restrictive VSDs >1.0 cm2 RV and LV
pressure is equalized
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ATRIAL SEPTAL DEFECT
Most common form is the ostium secundum defect in the region of the fossa ovalis
Other forms: primum and sinus venosus defects
Infants and children with ASDs are usually asymptomatic
Widely split and fixed S2 Gr 2-3/6 SEM
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PATENT DUCTUS ARTERIOSUS
Common problem in premature infants Left PA and the descending aorta If smallasymptomatic If large tachycardia and exertional dyspnea Dynamic precordium, systolic thrill at the
ULSB, bounding peripheral pulses with wide PP
Indomethacin
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CLOSURE OF THE DUCTUS ARTERIOSUS Functional closure occurs by constriction of
the medial smooth muscles in the ductus : occurs 10 -15 hours after birth
Anatomic closure completed in 2-3 weeks of life by permanent changes in the endothelium and subintimal layers of the ductus
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FACTORS THAT MAY FAVOR CLOSURE OF THE DUCTUS ARTERIOSUS Oxygen - strongest stimulus for
constriction of smooth muscles
Decrease Prostaglandin E2 levels
Responsiveness of the ductal smooth muscle to oxygen for closure depends on :gestational age of the newborndoes not depend on the lack of smooth muscle
development
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3. THE FOLLOWING ARE ANTI-HEART FAILURE MEDICATIONS, EXCEPT:
a.Dopamineb.Furosemidec.Phenytoind.Digoxin
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CONGESTIVE HEART FAILURE Results from CHDs or acquired heart diseases Volume and pressure overload or from
myocardial insufficiency Treatment
Elimination of precipitating causes Control of heart failure (meds)
Drug Therapy Diuretics (rapid acting like furo) Digitalis glycosides (Digoxin) Other Inotropic agents (Dopamine) Afterload reducing agents (hydralazine,
nitroglycerine, captopril, enalapril, nitroprusside)
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4. A 10 YEAR OLD WENT TO YOU FOR CONSULT DUE TO DIFFICULTY IN WALKING. ON PE, YOU NOTE THAT HE IS ALMOST PULSELESS. YOU SUSPECT:
a. Juvenile Rheumatoid Arthritisb. Takayasu Arteritisc. Panarteritis nodosad. Systemic lupus
erythematosus
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CLUE: PULSELESSNESS
Differentials Coarctation of the aorta
Femoral pulses are weak and delayed or absent Vasculitis syndromes
Vasculitis syndromes HSP, Takayasu arteritis, PAN Takayasu – involves large arteries, pulseless
disease PAN- small to medium sized arteries, presents
with fever Difficulty in walking – could be due to arthritis
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5. WHICH OF THE FOLLOWING IS THE EXCEPTION TO FULFILLING JONES CRITERIA IN ORDER TO DIAGNOSE RHEUMATIC FEVER
a. Subcutaneous nodulesb. Migratory polyarthritisc. Endocarditisd. Chorea
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JONES CRITERIA 5 major
Carditis, polyarthritis, erythema marginatum, subcutaneous nodules, chorea
Chorea may occur as the only manifestation of acute RF
4 minor Arthralgia, fever, elevated ESR, elevated CRP,
prolonged PR interval Evidence of recent strep group A infection
(+) throat culture Elevated ASO
JONES: 2 major or 1 major + 2 minor, with an evidence of recent strep infection
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6. WHICH OF THE FOLLOWING IS NOT AN INDICATION FOR TONSILLECTOMY?
a. Obstructive sleep apnea due to hypertrophic adenoids and tonsils
b. Severe rheumatic fever/rheumatic heart disease manifestation
c. To rule out tumord. 5 infections in each of the last 2
years for chronic tonsillitis patients
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INDICATIONS FOR TONSILLECTOMY (CHILDREN’S HOSPITAL OF PITTSBURG)
7 or more throat infections treated with antibiotics in the preceding year
5 or more throat infections treated in each of the preceding 2 years
3 or more throat infections treated in each of the preceding 3 years
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8. A PX COMES IN WITH TRISMUS, DIFFICULTY OF SWALLOWING AND “HOT POTATO” VOICE. YOUR DX IS
a. Retropharyngeal abscessb. Croupc. Peritonsillar abscessd. Epiglottitis
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NECK ABSCESSES
Retropharyngeal and Lateral pharyngeal abscess Common in young children 3-4 years old or younger Fever , irritability, decreased oral intake and
drooling Bulging posterior pharyngeal wall polymicrobial
Peritonsillar cellulitis/abscess Relatively common Older child, adolescent Sore throat, fever, trismus, dysphagia Asymmetric tonsillar bulge with displaced uvula “hot potato” voice
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CROUP VS EPIGLOTITIS Croup – viral (parainfluenza),; low grade
fever, non toxic; no distress; responds to racemic epinephrine and dexamethasone ; “steeple sign”
Epiglotitis- bacterial (H influenza); life-threatening; high fever, drooling, toxic child, acute onset; sitting forward; critical airway; “thumb sign”
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9. A LANKY TEENAGER WENT TO THE ER DUE TO SUDDEN ONSET DYSPNEA. HE HAS RETRACTIONS AND DECREASED BREATH SOUNDS OVER THE INVOLVED AREA; AND ON CXR THERE IS A MEDIASTINAL SHIFT TOWARDS THE UNINVOLVED SIDE. THE MOST LIKELY DIAGNOSIS IS
a. Pneumoniab. Spontaneous pneumothoraxc. Lung tumord. Atelectasis
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PNEUMOTHORAX Accumulation of extrapulmonary air within the chest Primary vs secondary Spontaneous, traumatic, iatrogenic or catamenial Spontaneous pneumothorax – common among young
adults and teenagers who are tall and thin On CXR – evidence of tension includes shift of
mediastinal structures away from the side of the air leak
Treatment Small (<5%) or moderate – resolves (1 week) 100% oxygen hastens resolution Analgesics Chest tube drainage Chemical pleurodesis (talc, doxycycline,
iodopovidone)
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10. TRUE ABOUT EPIGLOTITTIS
a. Rapidly progressive respiratory obstruction
b. Etiologic agent: Haemophilus influenza b
c. A medical emergencyd. All of the above
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EPIGLOTITIS bacterial (H influenza) life-threatening high fever, drooling, toxic child acute onset sitting forward critical airway “thumb sign”
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11. WHICH OF THE FOLLOWING INFECTIONS PRESENT AS PHARYNGEAL INJECTION, WITH TONSILLAR MEMBRANE AND “ BULL NECK” APPEARANCE?
a. Diphtheriab. Pertussisc. Tetanusd. Polio
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CLUE: BULLNECK AND THE MEMBRANE
Caused by Corynebacterium diphtheriae 62 k polypeptide exotoxin Pseudomembrane Bull neck appearance – underlying soft tissue
edema and enlarged lymph nodes Toxic cardiomyopathy – 50-60% of deaths Tx: antitoxin, antibiotics (erythro and
penicillin)
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12. GOLD STANDARD IN THE TREATMENT OF UNCOMPLICATED SALMONELLOSIS
a. Penicillinb. Ceftriaxonec. Aspirind. Chloramphenicol
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SALMONELLOSIS
Nontyphoidal salmonellosis Acute enteritis, bacteremia, extraintestinal focal
infections Tx: antibiotics for bacteremia and extra
intestinal infections (ceftriaxone) For acute enteritis: no antibiotics, only for infants
<3 mos, malnourished, immunocompromised Enteric or typhoid fever
S. Ser Typhi, Paratyphi A, Paratyphi B, Paratyphi C
Relative bradycardia, rose spots Dx: bone marrow culture Tx: Chloramphenicol remains the gold standard
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13. WHICH IS CONSIDERED AS POSITIVE PPD?
a. Below age 5 years with BCG > 5 mm
b. 5 years and above: > 5 mmc. 7 years and above : > 10 mmd. 7 years and above : > 12 mm
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Mantoux test 5 TU PPD-S read at 48-72 hrs Induration of >5mm is considered positive in
the presence of any of the following: history of a close contact with a known or suspected infectious case of TB, clinical findings suggestive of TB, cxr suggestive of TB and immunocompromised condition
Otherwise, >10mm is considered positive
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POSITIVE PPD
INDURATION > 5 MM Close contacts of TB pxs, immunocompromised,
those with clinical and radio findings INDURATION > 10 MM
Infants and children <4 yrs, those with underlying medical conditions, frequently exposed to high risk adults
INDURATION > 15 MM > 4yrs old with no risk factors
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14. WHICH OF THE FOLLOWING ANTITUBERCULOSIS MEDICATIONS IS CONTRAINDICATED FOR CHILDREN BELOW 7 YEARS OLD?
a. Rifampicinb. Pyrazinamidec. Streptomycind. Ethambutol
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TB In Infancy and Childhood Diagnosis: if 3 or more of the following
criteria are presentExposure to an adult/adolescent with active TB
diseaseSigns and symptoms suggestive of TBPositive tuberculin testAbnormal chest radiograph suggestive of TBOther lab finings suggestive of TB (histological,
cytological, biochemical, etc)
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Signs and Symptoms Cough/ wheezing of 2 weeks or more Unexplained fever of 2 weeks or more Loss of appetite, loss of weight, failure to
gain weight Failure to respond to 2 weeks of appropriate
antibiotics Failure to gain previous state of health after
two weeks of a viral infection or exanthem Fatigue, reduced playfullness, or lethargy
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Mantoux test 5 TU PPD-S read at 48-72 hrs Induration of >5mm is considered positive in
the presence of any of the following: history of a close contact with a known or suspected infectious case of TB, clinical findings suggestive of TB, cxr suggestive of TB and immunocompromised condition
Otherwise, >10mm is considered positive
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Clinical Forms of TB Pulmonary/Intrathoracic TB
Primary DiseaseProgressive primary diseasePleurisy with effusionEndobronchial Tbchronic pulmonary TBMiliary TBTuberculomaPericardial TB
Extrapulmonary/ExtrathoracicScrofula, TB adenitis, CNS TB, etc
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Management of TB Intensive Phase (2 mos) Continuation Phase (4 mos) DOTS : decrease the risk of infection, reduce
morbidity and the transmission of infection, prevent TB deaths
Anti TB drugs INH: 10-15mkdRifampicin: 10-20mkdPyrazinamide: 20-40mkdStreptomycin: 20-40mkdEthambutol: 15-25
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ANTI TB MEDS
Isoniazid Peripheral neuritis and hepatotoxicity
Rifampicin Orange discoloration of urine and tears,
thrombocytopenia and influenza like syndrome Pyrazinamide
hyperuricemia Streptomycin
Hearing loss Ethambutol
Optic neuritis and red-green color blindness Not recommended for use in children
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15. WHICH OF THE FOLLOWING VIRAL INFECTIONS PRESENTS WITH HIGH FEVER WHICH ABRUPTLY LYSES AND DISCRETE PINK, RAISED , NON-PRURITIC RASH ON THE TRUNK WHICH SPREADS TO THE NECK, FACE AND PROXIMAL EXTREMITIES?
a. Rubellab. Roseolac. Rubeolad. Mumps
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ROSEOLA INFANTUM Exanthem subitum or 6th disease Recall: 1st – measles, 2nd scarlet, 3rd rubella,
4th atypical scarlet( Filatov-Duke’s), 5th erythema infectiosum
Human herpesvirus 6 and 7 ( more of 6) Nagayama spots – ulcers at the
uvulopalatoglossal junction Primary HHV 6 infxn – 1/3 of febrile seizure
cases
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16. WHICH IS THE VECTOR OF DENGUE FEVER?
a. Anopheles mosquitob. Culex mosquitoc. Aedes aegypti mosquitod. Aedes africanus
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Aedes aegypti Flight range: < 25 m in open, urban environm’t
Dispersal: 30-50 m/d
Visits not more than 2-3 houses
Remains infective during lifetime
High humidity, longer mosquito survival
Ave lifespan: 8-15 d
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17. MOST SEVERE FORM OF MALARIA, PRESENTING WITH INTENSE PARASITISM
a. Malariaeb. Falcifarumc. Vivaxd. Ovale
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MALARIA P. falcifarum is the most severe form and is
associated with more intense parasitemia P. Vivax – less severe; ruptured spleen P. malariae is the mildest and most chronic P. Vivax and P. Ovale – daily fever spikes P. Malariae – every other or third day fever
spikes Periodicity of fever- less apparent in
falciparum Tx; chloroquine; for chloroquine resistance-
quinine Blackwater fever, algid malaria
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18. DRUG OF CHOICE FOR PREVENTION OF RELAPSES OF P. VIVAX AND P. OVALE INFECTION
a. Quinineb. Chloroquinec. Primaquined. Pyrimethamine –sulfadoxime
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RELAPSE
Common in P. Vivax, ovale and malariae
Caused by release of merozoites from an exoerythrocytic source in the liver (vivax an ovale) or persistence within the erythrocyte (malariae)
Primaquine OD x 14 days
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19. WHICH OF THE FOLLOWING INFESTATIONS IS NOT DETECTED BY DIRECT FECAL SMEAR?
a. Enterobiasisb. Trichuriasisc. Hookwormsd. Diphyllobotriasis
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HELMINTHIC DISEASES
Direct fecal examAscaris, hookworms, trichuriasis,
strongyloides, diphyllobotriasis Microscopic exam of cellophane tape -
enterobius Demonstration in the blood - filariasis Stool exam by Kato thick smear -
schistosomiasis
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20. WHICH OF THE FOLLOWING VACCINES IS PART OF THE EPI?
a. Tetanus toxoidb. Varicella vaccinec. Rotavirus vaccined. Typhoid vaccine
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EXPANDED PROGRAM ON IMMUNIZATION
BCG HEPATITIS B DPT POLIO MEASLES RECENT INCLUSIONS: HiB, MMR, ROTAVIRUS
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21. WHAT IS THE MOST COMMON HEMATOLOGIC DISEASE OF INFANCY AND CHILDHOOD?
a. Acute leukemiab. Iron deficiency anemiac. Idiopathic thrombocytopenic
purpurad. Hereditary spherocytosis
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Most common hematologic disease of infancy and childhood
Newborn – contains 0.5g of iron Adult – 5g Iron stores in term infants are sufficient for
blood formation in the first 6-9 months Therefore, it is unusual to have anemia due
to inadequate dietary iron before 6 months (usually occurs around 9-24 months)
Chronic iron def : peptic ulcer, Meckel, polyp, hemangioma, or inflammatory bowel disease
Hookworm infestation
IRON DEFICIENCY ANEMIA
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22. IN PHYSIOLOGIC ANEMIA OF INFANCY, HEMOGLOBIN DECLINES AT ____ WEEKS FOR TERM INFANTS
a. 3-6b. 10-12c. 6-8d. 2-4
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PHYSIOLOGIC ANEMIA OF INFANCY
Newborns have higher Hgb and Hct Within the 1st week, Hgb starts to decrease
and may persist for 6-8 weeks Increase in blood oxygen content and tissue
oxygen delivery downregulates erythropoietin (EPO) production
Peak: 8-12 weeks (Hgb 9-11) Prematures: more exaggerated (3-6 wks, Hgb
7-9)
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23. WHICH OF THE FOLLOWING PRODUCES PERIPHERAL PANCYTOPENIA WITH HYPOPLASTIC MARROW?
a. Acute leukemiab. Iron deficiency anemiac. Idiopathic thrombocytopenic
purpurad. Aplastic anemia
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Aplastic Anemia
Hallmark is peripheral pancytopenia, coupled with hypoplastic or aplastic bone marrow
Severe aplastic anemia – 2 or more cell components have become seriously compromised (ANC < 500/mm3, PC 20,000-100,000/mm3, retic count <1% after correction for hematocrit)
Moderate aplastic anemia – ANC 500 -1,500/mm3, PC 20,000 -100,000 and retic count <1%
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24. MOST COMMON EXTRACRANIAL TUMOR OF CHILDHOOD, MOST FREQUENTLY DIAGNOSED DURING INFANCY, AND MOSTLY ARISING FROM THE ABDOMEN
a. Wilm’s tumorb. Hepatoblastomac. Neuroblastomad. Nephroblastoma
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CANCER AND BENIGN TUMORS Neuroblastoma
Most common extracranial solid tumor in children and the most commonly diagnosed malignancy in infants
Embryonal cancer of the peripheral SNS Median age of dx is 2 yr; 90% before 5 yr Most cases arise in the abdomen CT scan: calcification and hemorrhage Tumor markers: VMA and HVA
Wilm’s Tumor Also known as Nephroblastoma Most common primary malignant renal tumor of childhood;
2nd most common malignant abdominal tumor in childhood 3 elements: blastema, epithelia and stroma Associated with hemihypertrophy, aniridia, and other
congenital anomalies (WAGR, Denys-Drash, Beckwith-Wiedemann)
Occurs in children between 2-5 years old CT: no calcification
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25. A 15-YEAR OLD CONSULTED FOR ARM SWELLING AND PAIN. X-RAY SHOWED SCLEROTIC DESTRUCTION OF THE PROXIMAL HUMERUS WITH SUNBURST PATTERN. THE MOST LIKELY DIAGNOSIS IS
a. Osteosarcomab. Ewing’s sarcomac. Rhabdomyosarcomad. Enchondroma
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CANCER AND BENIGN TUMORS Bone Tumors
Feature Osteosarcoma Ewing’s
AgeRaceSex (M:F)CellPredispositionSitePresentationRadiographic findingMetastasisTxOutcome
Second decadeAll races1.5:1Spindle cellRetinoblastoma, Paget’sMetaphyses of long bonesLocal pain & swellingSunburst patternLungs, bonesChemotherapyWithout mets: 70% curedWith mets: < 20% survival
Second decadePrimarily whites1.5:1Small round cellNoneDiaphyses, flat bonesLocal pain &swellingOnion skinningLungs, bonesChemotherapyW/o mets: 60% curedWith mets: 20-30% survival
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26. DEFICIENCY IN WHICH OF THE FOLLOWING FACTORS WILL YOU NEED TO GIVE VITAMIN K?
a. Factors II, V, VII, IXb. Factors V, VIII, IX, X, XIc. Factors II, VII, IX, Xd. Factors II, VIII, IX, X
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27. A NEWBORN PRESENTED WITH “BLUEBERRY MUFFIN” RASH, CATARACTS, PULMONARY STENOSIS AND HEARING LOSS. YOU SUSPECT THAT THE BABY HAS
a. Congenital varicella syndrome
b. Neonatal herpes syndromec. Congenital syphillisd. Congenital rubella syndrome
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CONGENITAL INFECTIONS
Congenital Syphilis Early and late signs Early – snuffles; late –Hutchinsons teeth, saber
shins, olympian brow Congenital varicella – malformations of the
extremities with cicatricial scarring Congenital rubella – cataracts, heart defects,
deafness, blueberry muffin lesions (same as in CMV)
Neonatal herpes
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28. A BABY WAS BROUGHT TO YOUR CLINIC BECAUSE OF FAILURE TO THRIVE. HE HAD DELAYED PASSAGE OF MECONIUM AND CHRONIC CONSTIPATION. HE HAS ABOMINAL DISTENTION AND A PALPABLE MASS ON THE LLQ. THE RECTAL VAULT WAS EMPTY BUT A GUSH OF FOUL-SMELLING GAS WAS NOTED ON RECTAL EXAM. BARIUM ENEMA SHOWED A DILATED PROXIMAL COLON AND SMALL CALIBER DISTAL COLON. SHORT OF A BIOPSY, YOUR DIAGNOSIS IS
a. Intussusceptionb. Congenital aganglionic megacolonc. Hypertrophic pyloric stenosisd. Gastric volvulus
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Congenital Aganglionic Megacolon (Hirschspung Disease) Most common cause of lower intestinal obstruction in
neonates Caused by abnormal innervation of the bowel
(absence of ganglion cells), beginning in the internal anal sphincter and extending proximally to involve a variable length of gut
Symptoms usually begin at birth with the delayed passage of meconium (In 99% of full term infants, meconium is passed within the first 48 hours)
Rectal exam demonstrates normal anal tone and is usually followed by an explosive discharge of foul smelling feces and gas
Rectal manometry and rectal suction biopsy Barium enema is useful in determining the extent of
aganglionosis Definitive treatment is operative intervention
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29. PRECOCIOUS PUBERTY IS DEFINED AS ONSET OF PUBERTY BEFORE AGE 8 IN GIRLS AND __ IN BOYS
a. 8b. 9c. 10d. 11
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PRECOCIOUS PUBERTY
Onset of secondary sexual characteristics before 8 years of age in girls and 9 years in boys
Conditions causing precocious pubertyGonadotropin dependent pubertyCombined gonadotropin dependent
and independent(ex. McCune –Albright)
Gonadotropin independentIncomplete
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30. WHICH OF THE FOLLOWING HORMONES IS NOT FOUND IN THE ANTERIOR PITUITARY
a. Oxytocinb. Prolactinc. Leutinizing hormoned. Follicle stimulationg hormone
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PITUITARY HORMONES
Anterior PituitaryGH, prolactin, TSH, ACTH, LH, FSH,
POMC Posterior Pituitary
Vasopressin and oxytocin
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31. A 12 YEAR OLD MALE WAS BROUGHT IN FOR DEHYDRATION. HE HAS BEEN POLYURIC AND POLYDIPSIC FOR QUITE SOME TIME. HE HAS LOW URINE AND SERUM OSMOLALITY, AND HYPERNATREMIA. YOU SUSPECT DIABETES INSIPIDUS. TO DIFFERENTIATE BETWEEN CENTRAL AND NEPHROGENIC ORIGIN, YOU DO:
a. Insulin challenge testb. DDAVP testc. Erythropoietin testd. Beta agonist challenge
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DIABETES INSIPIDUS Polyuria, polydipsia (exceeding 2L/m2/24hr),
hypernatremia Serum osmolality >300 mOsm/kg and urine
osmolality <300 mOsm/kg Central vs nephrogenic Central DI
Genetic mutations to the vasopressin gene, trauma to vasopressin neurons, congenital malformations of the hypothalamus or pituitary, neoplasms, infections, autoimmune diseases, inc vasopressin metabolism
Nephrogenic DI Vasopressin insensitive Genetic (less common but more severe) or
acquired causes
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32. A KNOWN INSULIN DEPENDENT DIABETIC COMES TO YOUR CLINIC AND COMPLAINS OF EARLY MORNING HYPERGLYCEMIA. YOU SUSPECT BRITTLE DIABETES. YOU MEASURE HIS 3, 4, AND 7 AM GLUCOSE CONCENTRATION. THE 3 AND 4 AM LEVELS ARE BELOW 60 MG/DL, WHILE THE 7 AM IS MARKEDLY HIGH. THE PX IS EXPERIENCING
a. Diabetic ketoacidosisb. Insulin shockc. Somogyi phenomenond. Dawn phenomenon
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DIABETES MELLITUS
Somogyi phenomenon Theoretical rebound from late night or early
morning hypoglycemia Exaggerated counterregulatory response rare
Dawn phenomenon Due to overnight GH secretion and inc insulin
clearance Usually recurrent and modestly elevates morning
levels Brittle diabetes
Unexplained wide fluctuations in glucose levels Usually an adolescent female with recurrent DKA
taking large doses of insulin
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33. A NEIGHBOR SHOWS YOU HER 3-WEEK OLD BABY FOR CONSULT. SHE TELLS YOU THAT THE BABY IS SLUGGISH, DOES NOT FEED WELL AND IS CONSTIPATED. YOU NOTE THAT SHE IS JAUNDICED WITH A GLAZED LOOK, ENLARGED ABDOMEN, UMBILICAL HERNIA, AND MOTTLED SKIN. WHICH OF THE FOLLOWING LABORATORY EXAMS WILL YOU PRIORITIZE TO HELP YOU WITH YOUR DIAGNOSIS?
a. Chest x-rayb. Lumbar tapc. Serum T3, T4, TSHd. Serum Na, K, Ca
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CONGENITAL HYPOTHYROIDISM Most common cause is thyroid dysgenesis (80-
85%); 15% - inborn error of thyroxine synthesis Detected by newborn screening F>M May be normal at birth (but head size may be
slightly increased due to myxedema of the brain)
Prolongation of physiologic jaundice – earliest sign
Other findings: feeding difficulties, sluggishness, lack of interest, somnolence, choking spells during nursing, constipation, large abdomen, umbilical hernia
Low serum T4 and elevated TSH levels Tx: levothyroxine
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34. YOUR ADOLESCENT NIECE TALKS TO YOU ABOUT HER HEIGHT. SHE IS VERY TALL (90TH PERCENTILE), AND ASKS IF THERE IS SOMETHING WRONG WITH HER. HER PARENTS AND SIBLINGS ARE ALL TALL, AND SHE IS IN EXCELLENT HEALTH. WHAT WILL YOU DO?
a. Assure her that she is normalb. Have x-rays done to check her
epiphysisc. Get her growth hormone levelsd. Have her undergo cranial CT scan
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35. A WEEK OLD BABY WAS BROUGHT TO THE ER BECAUSE OF WEAKNESS. SHE HAS BEEN VOMITING AND FEEDING POORLY. HER LAB EXAMS ARE UNREMARKABLE EXCEPT FOR SEVERE METABOLIC ACIDOSIS. YOU TELL THE ATTENDING PHYSICIAN THAT WHILE DOING YOUR PE, YOU NOTED THAT HER URINE SMELLED SWEET, LIKE MAPLE SYRUP. YOU THEN ASK FOR AMINOACID ASSAY, AND EXPECT THE FOLLOWING RESULT:
a. High leucine, isoleucine and valine levels and low alanine levels
b. High isovaleric acid, isovaleryglycerine and hydroxyvaleric acid levels
c. High methylmalonyl acid levelsd. High glutamine and alanine levels
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INBORN ERRORS OF METABOLISM ASSOCIATED WITH ABNORMAL ODOR
Inborn Error of Metabolism Urine Odor
Glutaric Acidemia (Type III) Sweaty feet, Acrid
Hawkinsinuria Swimming pool
Isovaleric Acidemia Sweaty feet, Acrid
Maple Syrup Urine Disease Maple syrup
Hypermethioninemia Boiled cabbage
Multiple carboxylase deficiency Tomcat urine
Phenylketonuria Mousy or musty
Trimethylaminuria Rotting fish
Tyrosinemia Boiled cabbage, rancid butter
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MAPLE SYRUP URINE DISEASE
DiagnosisPeculiar odor of maple syrupElevated levels of branched chain amino
acids (ILV) Treatment
Aim: rapid removal of branched chain amino acids and their metabolites
DietHydrationDialysis
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36. A NEWBORN WAS BROUGHT TO THE ER FOR SEIZURES. SHE WAS BORN AT HOME AND A SHARPENED BAMBOO STICK WAS USED TO CUT THE CORD. THE MOTHER DID NOT HAVE PRENATAL CHECK-UP AND HER IMMUNIZATION STATUS WAS UNKNOWN. YOUR DIAGNOSIS IS NEONATAL TETANUS. THE DRUG OF CHOICE ISa. Penicillinb. Metronidazolec. Ceftriaxoned. Chloramphenicol
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NEONATAL TETANUS Most common form of tetanus An acute spastic paralytic illness caused by the
neurotoxin (tatanospasmin) produced by Clostridium tetani
Tetanospasmin – 2nd most poisonous substance known (surpassed in potency only by the botulinum toxin)
Manifestations In infants – progressive difficulty in feeding, associated
hunger and crying In older children- trismus (masseter muscle spasm or
lockjaw), sardonic smile ( intractable spasms of the facial and buccal muscles)
Treatment Human Tetanus Ig Penicillin G – antibiotic of choice; alternatives:
metronidazole, erythromycin, Tetracycline Surgery
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37. A TEENAGER WAS BROUGHT TO THE ER FOR RESPIRATORY DISTRESS. HE WAS IMMEDIATELY INTUBATED. THE ILLNESS STARTED AS DIFFICULTY IN WALKING, THEN WEAKNESS OF THE UPPER TRUNK AND EXTREMITIES AND FINALLY FACIAL WEAKNESS. THE HX IS UNREMARKABLE EXCEPT FOR A NON SPECIFIC VIRAL ILLNESS 2 WEEKS AGO. PE SHOWS COMPLETE PARALYSIS WITH ABSENT TENDON REFLEXES. THE LIKELY DX IS
a. Bell palsyb. Transverse myelitisc. Spinal muscular atrophyd. Guillain-Barre Syndrome
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GUILLAIN – BARRE SYNDROME Postinfectious polyneuropathy involving mainly motor
but sometimes also sensory and autonomic nerves Usually follows a nonspecific viral infection Weakness begins in the lower extremities and
progressively involves the trunk, the upper limbs, and finally the bulbar muscles (a pattern known as Landry ascending paralysis)
Proximal and distal muscles are involved relatively symmetrically
CSF – protein is elevated to more than 2x the upper limit of normal
Dissociation between high CSF protein and a lack of cellular response is diagnostic
Treatment: IVIG Alternative Tx: Plasmapheresis and
immunosuppressive drugs
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38. MOST COMMON INFRATENTORIAL TUMOR IN CHILDREN
a. Medulloblastomab. Brainstem gliomac. Cerebellar astrocytomad. ependymoma
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CANCER AND BENIGN TUMORS Brain Tumors in Children
Categories Juvenile pilocytic astrocytoma – MOST COMMON Medulloblastoma Diffuse astrocytoma Ependymoma craniopharyngioma
Location Infratentorial (43.2%) Supratentorial (40.9%) Spinal cord (4.9%) Multiple sites (11%)
Important! Within the 1st year –supratentorial 1-10 yr – infratentorial Cranial exposure to ionizing radiation – inc incidence
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39. A NEWBORN IS SUSPECTED TO HAVE SEPSIS. LUMBAR TAP WAS DONE AS PART OF THE WORK-UP. CSF STUDIES SHOWED RBC=0, WBC 10/MM2, PROTEIN 10 MG/DL, GLUCOSE 60% OF SERUM GLUCOSE. THE PATIENT HAS:
a. TB meningitisb. Bacterial meningitisc. Normal CSFd. Viral meningitis
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CEREBROSPINAL FLUID LP: L3-L4 or L4-L5 OP: 100 mm/Hg ( 60-180) Contraindications
Elevated ICPs/sx of pending cerebral herniationCritical illnessSkin infection at the siteThrombocytopenia (<20 x 109)
Normal CSFClear, wbc up to 5 (for NB up to15), no
rbcs, protein 10-40 mg/dl (120 in a neonate), glucose 60%
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40. CRANIAL CT SCAN OF A CHILD WITH MULTIPLE CONGENITAL ANOMALIES SHOWED ABSENCE OF CONVOLUTIONS. THIS IS KNOWN AS
a. Porencephalyb. Lissencephalyc. Schizencephalyd. Holoprosencephaly
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DISORDERS OF NEURONAL MIGRATION
LissencephalyAbsence of convolutions (agyria)
SchizencephalyPresence of unilateral or bilateral clefts
within the hemispheres Porencephaly
Presence of cysts or cavities within the brain
HoloprocencephalyDefective cleavage of the procencephalon
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41. YOUR FRIEND TELLS YOU THAT HIS CHILD WAKES UP AROUND MIDNIGHT SCREAMING AND HYPERVENTILATING. THE CHILD GOES BACK TO SLEEP IN A FEW MINUTES, AND ACTS AS IF NOTHING HAPPENED IN THE MORNING. THE DIAGNOSIS IS
a. Night terrorb. Rage attackc. Choreoathetosisd. Nightmares
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NIGHT TERRORS VS NIGHTMARES
NightmaresCommon and usually involve vivid,
scary or exciting events which the child can recall upon waking up
Night terrorsLess commonLast 10-15 minutes, during which
the child is not easily aroused and appears frightened or agitated
No recollection of the event
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42. A CHILD COMPLAINS OF INTENSE PRURITUS OF THE SKIN, PARTICULARLY AT NIGHT. THERE ARE EXCORIATED, CRUSTING, AND SCALING PAPULES ON THE TRUNK, PARTICULARLY THE WAIST AREA, THE INTERDIGITAL SPACES AND FLEXOR AREAS. THE TREATMENT OF CHOICE IS
a. Lindaneb. Topical corticosteroidc. Selsun blued. Tretinoin
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SCABIES
Caused by burrowing and release of toxic and antigenic substances by the female mite Sarcoptes scabiei var hominis
Most important factor that determines spread of scabies is the extent and duration of physical contact with an affected individual
Intense pruritus particularly at night Threadlike burrows- classic lessions Treatment: Permethrin 5% Additional therapies: Lindane 1% lotion or
cream and oral ivermectin
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43. A NEWBORN’S WEIGHT GAIN IS APPROXIMATELY __ GMS/MONTH AT AGE 2-6 MONTHS
a. 300b. 400c. 500d. 600
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WEIGHT GAIN DURING THE FIRST YEAR
0-2 MOS30 g/day
2-6 MOS20 g/day
6-9 MOS15 g/day
9-12 MOS12 g/day
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44. THE FIRST PRIMARY TEETH TO ERUPT ARE
a. Upper central incisorsb. Lower central incisorsc. Upper lateral incisorsd. cuspids
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CHRONOLOGY OF HUMAN DENTITION(PRIMARY)
AGES (MOS) AGES (MOS)
Maxillary Mandibular
Central incisors
6-8 5-7
Lateral incisors 8-11 7-10
Cuspids 16-20 16-20
First molars 10-16 10-16
Second molars 20-30 20-30
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45. HANDEDNESS IS USUALLY ESTABLISHED AT AGE ___ YEARS
a. 2b. 3c. 4d. 5
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Preschool Years
Between 2 and 5 years old Emergence of language and exposure of children
to an expanding social sphere Handedness is usually established at 3 y/o Bowel and bladder control; bedwetting up to age
4 in girls and 5 years in boys Piaget’s preoperational stage: magical thinking,
egocentrism and thinking that is dominated by perception, not abstraction
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46. THE FIRST VISIBLE SIGN OF PUBERTY IN MALES IS
a. Voice changeb. Pubic hairc. Growth spurtd. Testicular enlargement
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ADOLESCENCE
10-20 years old Early, middle and late adolescence Rapid changes in body size, shape,
physiology, and psychological and social functioning
In boys: testicular enlargement In girls: appearance of breast buds
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47. A 3-YEAR OLD WAS BROUGHT TO YOU FOR EVALUATION OF DELAYED SPEECH. THE CHILD HAS REPETITIVE BEHAVIOR, NO EYE CONTACT, ALONE. HE IS SUSPECTED TO HAVE
a. Asperger disorderb. Autismc. Schizophreniad. Attention deficit disorder
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PERVASIVE DEVELOPMENTAL DISORDERS
Autistic Disorder Asperger Disorder Childhood Disintegrative Disorder Rett Disorder Childhood Schizophrenia
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Autism Develops before 36 months and is typically
diagnosable at 18 mos of age Qualitative impairment in verbal and non verbal
communication, in imaginative activity and in reciprocal social interactions
Males>females Poor eye contact, little symbolic play, repetitive
behaviors, limited joint attention or orienting to one’s name, and reliance on non verbal communication with delay in use of words
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Autism
CHAT- checklist for autism in toddlers Intensive behavioral therapy before 3 yrs old
targeted toward speech and language development
Educational programming, behavior modification
Pharmacotherapy: SSRIs, clonidine
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Asperger Disorder – no severe language impairments as compared to patients with autism
Rett Disorder – x-linked dominant disorder affecting girls exclusively; boys die at birth development is normal until about 1-2 years old
until motor and language development regress
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48. YOU EXPECT A SEVEN MONTH OLD TO BE ABLE TO
a. Pull to standb. Sit without supportc. Walk aloned. Grasp object with thumb and
forefinger
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MOTOR DEVELOPMENT
Dependent on brain maturitySequence : Gross: cephalocaudal
Fine : proximodistalWeakest correlation to IQ
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GROSS MOTOR MILESTONESMean Age (mos)Mean Age (mos) MilestonesMilestones
33 Head controlHead control
55 Roll overRoll over
66 Sit with supportSit with support
88 Sit aloneSit alone
99 Pulls to stand holding onPulls to stand holding on
1111 Stand independentlyStand independently
1515 Walk aloneWalk alone
2424 Climb up and down stairsClimb up and down stairs
3636 Ride a trikeRide a trike
4848 Hop on one footHop on one foot
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FINE MOTOR MILESTONESMean Age (mos)Mean Age (mos) MilestonesMilestones
3.5 3.5 Grasps rattleGrasps rattle
44 Reaches for objectsReaches for objects
44 Palmar grasp gonePalmar grasp gone
5.55.5 Transfers objects hand to handTransfers objects hand to hand
88 Pincer graspPincer grasp
1212 Turns pages of booksTurns pages of books
1313 ScribblesScribbles
1515 Builds tower of 2 cubesBuilds tower of 2 cubes
2222 Builds tower of 6 cubesBuilds tower of 6 cubes
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49. XEROPHTHALMIA, NYCTALOPIA, AND PHOTOPHOBIA ARE CAUSED BY DEFICIENCY IN WHICH VITAMIN?
a. Ab. Bc. Cd. D
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VITAMIN DEFICIENCIES
Vitamin A: photophobia, xerophthalmia, blindnessVitamin B: beriberi, fatigue, anorexia,
constipationRiboflavinNiacin: pellagraFolacin: megaloblastic anemiaCyanocobalamin: pernicious anemiaBiotin: dermatitis, seborrheaPyridoxine: irritability, convulsions
Vitamin C: scurvy and poor wound healingVitamin D: ricketsVitamin E: red blood cell hemolysisVitamin K: hemorrhage
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50. WHICH OF THE FOLLOWING MINERAL WILL CAUSE MOTTLING OF THE TEETH WHEN TAKEN IN EXCESS?
a. Calciumb. Ironc. Magnesiumd. Fluoride
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FLUOROSIS
Mottled enamel Results from systemic fluoride consumption
(>0.05mkd) during enamel formation Severe brownish discoloration and hypoplasia
– also seen with fluoride concentrations in the drinking water >5ppm
For prevention of dental caries – 1ppm Children < 6y/o : pea sized amount of
toothpaste Children < 2 y/o : “smear”
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51. AN EMACIATED CHILD WAS BROUGHT TO THE ER FOR MEDICAL MANAGEMENT. HE HAS WRINKLED LOOSE SKIN, SLIGHTLY DISTENDED ABDOMEN, MUSCLE ATROPHY. HIS FACE LOOKS WIZENED DUE TO LACK OF SUBCUTANEOUS FAT. HIS EXTREMITIES ARE COOL, AND TEMP IS SUBNORMAL. THE DIAGNOSIS IS
a. Kwashiorkorb. Marasmusc. Pellagrad. Rickets
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PROTEIN/ENERGY MALNUTRITION (PEM) Edematous (Kwashiorkor) and
Nonedematous (Marasmus) PEM Edematous: edema, psychomotor changes,
flag sign, flaky dermatosis, moonface, anemia, diarrhea
Marasmus: gross loss of subcutaneous fat, obvious muscle wasting, potbelly, winged scapula
Treatment of PEM: 3 phases First : stabilization, correction of dehydration,
antibiotics Second: Diet providing maintenance requirements of
protein and energy Third: Recovery diet- 150 cal/kg/d and 4g/kg/d of
protein
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52. A CHILD WITH HYPOTONIA, SLANTED PALPEBRAL FISSURES, EPICANTHAL FOLD, SIMIAN CREASE, COMPLETE ATRIO-VENTRICULAR SEPTAL DEFECT, AND SHORT BROAD HANDS HAS
a. 7q23 deletionb. Trisomy 18c. Trisomy 21d. 22q11 deletion
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TRISOMY 21 (DOWN SYNDROME) Incidence: 1/600-800 births Findings
Hypotonia Upward and slanted palpebral fissures and
epicanthic folds Speckled irises (Brushfield spots) Varying degrees of mental and growth
retardation Cardiac malformations Simian crease
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53. PREMATURE BIRTH IS DEFINED AS LIVE BIRTH BEFORE __ WEEKS FROM THE FIRST DAY OF THE LAST MENSTRUAL PERIOD:
a. 39b. 38c. 37d. 36
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54. VERY LOW BIRTHWEIGHT INFANTS WEIGH LESS THAN ____ GMS
a. 1,000b. 2,500c. 2,000d. 1,500
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Perinatal Mortality - influenced by prenatal, maternal and fetal factors IUGR, asphyxia, placental insufficiency, severe
congenital malformations, early onset neonatal infections
Neonatal Deaths - associated with preterm birth and low birth weight and lethal congenital anomalies
Low Birth Weight LBW : 2500g or less VLBW: 1500g or less
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55. DIFFERENTIAL DIAGNOSES FOR JAUNDICE IN THE FIRST 24 HOURS OF LIFE, EXCEPT:
a. Physiologic jaundiceb. ABO incompatibilityc. Sepsis d. Hemorrhage
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HYPERBILIRUBINEMIA Newborns appear jaundiced when the bil level is >
7 mg/dl Physiologic hyperbilirubinemia
Onset > 24 hours Inc RBC production Inc enterohepatic circulation Defective uptake Decreased conjugation Decreased hepatic secretion
Pathologic Onset < 24 hrs Rise of >0.5 mg/dl/hr >8 days (term), 14 days (preterm) symptomatic
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KERNICTERUS Bilirubin encephalopathy resulting from the
deposition of unconjugated (indirect) bilirubin in the basal ganglia and brainstem nuclei
> 25mg/dl, range: 21-50 Clinical features
Acute Phase 1: poor suck, hypotonia, seizures Phase 2: hypertonia of extensor muscles, opisthotonos,
retrocolis, fever Phase 3: hypertonia
Chronic 1st year : hypotonia, active deep tendon reflexes After 1st year: movement disorders, SNHL, upward gaze
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KERNICTERUS Treatment of Hyperbilirubinemia
Phototherapy Photoisomerization Complication; loose stools, rash, overheating, dehydration,
bronze baby syndrome Intravenous Immunoglobulin Metalloporphyrins
Competitive enzymatic inhibition of the rate limiting conversion of heme protein to biliverdin by heme oxygenase
Exchange Transfusion double volume exchange transfusion
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56. A CHILD WAS BROUGHT TO THE ER DUE TO EDEMA. IT STARTED ON THE FEET PROGRESSING TOWARDS THE THIGHT. THE EYES WERE NOTED TO BE PUFFY PARTICULARLY IN THE MORNING. THE MOTHER CANNOT RECALL ANY PRIOR ILLNESS. ON PE, YOU NOTICE SEVERAL HEALING WOUNDS ON THE LEGS, AND HIS BP IS HIGH. ON FURTHER PROBING, THE CHILD CONFESSES THAT HIS URINE IS COLA COLORED. YOUR PRIMARY DIAGNOSIS IS:
a. Nephrotic syndromeb. Renal tubular acidosisc. Acute glomerulonephritisd. IgA nephropathy
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POST STREPTOCOCCAL GLOMERULONEPHRITIS
Most common in children age 5 to 12 years
Uncommon before the age of 3 Phases:
Latent: hematuria, edemaOliguric: edema, hypertension, azotemia,
oligoanuriaDiuretic: spontaneous voiding, clinical
improvementEarly convalescent: increased well being
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POST-STREPTOCOCCAL GLOMERULONEPHRITIS Serochemical findings:
Decreased C3 Elevated ASO or anti DNAse B Hyperkalemia Normal CBC, may have dilutional anemia Elevated BUN and creatinine during the oliguric
phase Urinalysis: proteins, rbcs
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ACUTE POSTSTREP GN
Acute onset of gross hematuria, edema, hypertension, and renal insufficiency
Follows infection of the throat or skin by nephritogenic strains of group A B-hemolytic strep
Kidneys are enlarged; on EM – there are “humps” on the GBM
Low C3 levels Edema is due to salt and water retention
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58. THE MOST COMMON CAUSE OF IDIOPATHIC NEPHROTIC SYNDROME IS
a. Focal segmental sclerosisb. Membranous nephropathyc. Membranoproliferative GN type 1d. Minimal change nephrotic
syndrome
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NEPHROTIC SYNDROME
Heavy proteinuria , hypoalbuminemia, edema and hyperlipidemia
90% idiopathicCauses of idiopathic: minimal
change disease(85%), mesangial proliferation (5%), and focal segmental glomerulosclerosis (10%)
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59. YOU NOTE THAT A NEWBORN BABY BOY’S PREPUCE CANNOT BE RETRACTED. HE HAS
a. Hypospadiasb. Phimosisc. Chordeed. Paraphimosis
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ANOMALIES OF THE PENIS AND URETHRA
Hypospadias- a urethral opening that is on the ventral surface of the penile shaft (1/250)
Chordee without hypospadias – mild or moderate ventral penile curvature (chordee) and incomplete development of the foreskin but the urethral meatus is at the tip of the glans
Phimosis – inability to retract the prepuce Paraphimosis – occurs when the foreskin is
retracted past the coronal sulcus and the prepuce cannot be pulled back over the glans
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60. A 3-MONTH OLD BABY WITH UNILATERAL UNDESCENDED TESTIS WAS BROUGHT TO YOU FOR THE FIRST TIME. THE MOTHER ASKS IF SURGERY IS REQUIRED TO BRING IT DOWN. YOU TELL HER THAT YOU WILL OBSERVE FOR THE MEANTIME. HOW LONG WILL YOU OBSERVE?
a. 1 monthb. 2 monthsc. 3 monthsd. 4 months
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UNDESCENDED TESTES (CRYPTORCHIDISM)
Most common disorder of sexual differentiation in boys
4.5% of boys at birthBilateral in 10% of casesMajority descend spontaneously
by 3 monthsIf the testis does not descend by
4 months, it will remain undescended
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61. WHICH IS TRUE ABOUT STATUS EPILEPTICUS?
a. Continuous convulsion lasting for 25 minutes
b. Serial convulsions with return of consciousness in between
c. Always generalizedd. A medical emergency
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STATUS EPILEPTICUS
Continuous convulsion lasting longer that 30 minutes
Serial convulsions with no return of consciousness in between
May be generalized or partialMedical emergency
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62. THE FOLLOWING ARE PART OF THE MANAGEMENT OF HYPERCYANOTIC SPELLS, EXCEPT:
a. Hydrationb. Oxygen supportc. Lactate administrationd. Beta blocker administration
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TREATMENT OF HYPOXIC SPELLS Knee chest position – traps systemic venous blood in
the legs thereby temporarily decreasing the systemic venous return and helping calm the baby. This also increases the systemic venous resistance (SVR) by reducing arterial blood flow through the femoral arteries
Morphine sulfate – suppresses the respiratory center and abolishes hyperpnea
NaHCO3 – corrects acidosis and eliminates the respiratory center-stimulating effects of acidosis
Administration of oxygen may improve arterial oxygen saturation a little
Vasoconstrictors such as phenylephrine raise SVR Ketamine – increases SVR and sedates the patient Propranolol
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63. HOW WILL YOU MANAGE A PATIENT WITH ACUTE OTITIS MEDIA WHO HAS BEEN TREATED WITH AMOXICILLIN AT 50 MKD FOR 3 DAYS, BUT STILL HAS FEVER, EAR PAIN AND EAR DISCHARGE? THE PATIENT HAS NOT BEEN TREATED WITH ANY OTHER ANTIBIOTIC PRIOR TO THIS EPISODE?a. Continue his medicationb. Do tympanocentesisc. Give clindamycin at 40 mkdd. Increase the amoxicillin dose to
80-90 mkd
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ACUTE OTITIS MEDIA
Etiology: Strep pneumoniae, non-typable H influenzae, Moraxella catarrhalis
Treatment:1st line : Amoxicillin 40 mkd 80-100mkdHigher dose for children < 2 yrs, children
who have recently received treatment with B lactam drugs, children who are exposed to large number of children
2nd line: Amoxicillin-clavulanic acid, cefuroxime, ceftriaxone
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65. A MOTHER IS CONCERNED ABOUT HER DAUGHTER’S WEIGHT. THE 9 YEAR OLD GIRL WEIGHS 26 KG. NUTRITIONAL HISTORY REVEALS A WELL-BALANCED DIET. WHAT ADVICE WILL YOU GIVE?
a. Enrol her daughter on a weight loss program
b. Prescribe multivitamins and mineral supplements
c. Assure her that weight for age is normal and continue with her diet
d. Tell her to wait for her menarche and then you will reassess
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WEIGHT• Best index of growth and nutrition• Mnemonics:
• Infants < 6 months
• Wt. in gms = Age in mos x 600 + BW
• 6-12 months
• Wt. in gms = Age in mos x 500 + BW
• 2 years and up
• Wt. in kgs = Age in years x 2 + 8
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66. WHICH OF THE FOLLOWING DISEASES IS PART OF THE NEONATAL NEWBORN SCREENING?
a. Congenital toxoplasmosisb. Congenital rubellac. Congenital adrenal
hyperplasiad. Congenital varicella
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NEWBORN SCREENING
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METABOLIC DISEASES
Inborn Errors of MetabolismAminoacids: PKU, MSUD, TyrosinemiaLipids: ALDCarbohydrates: Von Gierke’s, Pompe’s,
GalactosemiaMucopolysaccharides: Hurler’s, Hunter’s, SanfilippoPurine and Pyrimidines: Gout, Lesch-Nyhan
Newborn ScreeningPKU, CAH, CH, GAL, G6PDRepublic Act 9288: Newborn Screening Act of 2004Done after the 24th HOL and not later than 72 HOL
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67. A NEONATE WITH A HEART RATE OVER 100/MIN, SHOW IRREGULAR BREATHING, ACTIVE MOTION, GRIMACE, PINK BODY BUT BLUE EXTREMITIES HAS AN APGAR SCORE OF __ AT 1 MINUTE
a. 7b. 8c. 9d. 10
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PHYSICAL EXAM
APGAR SCOREDictates the need to resuscitate Normal: 7- 9 Sign of distress: </= 6 Severe asphyxia: 1-3 5 mins: prolonged distress in
utero, some degree of damage, expect neurologic sequelae
10 mins: if still< 7, continue taking APGAR until >7 is REACHED!!!
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APGAR EVALUATION OF NEWBORNS
SIGN 0 1 2
Heart Rate Absent Below 100 Over 100
Respiratory Effort
Absent Slow, irregular Good, crying
Muscle tone Limp Some flexion of extremities
Active motion
Response to catheter in nostril
No response Grimace Cough or sneeze
Color Blue, pale Body pink, extremities blue
Completely pink
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68. A PATIENT WAS BROUGHT TO THE ER DUE TO FLACCID PARALYSIS. YOU SUSPECT THAT HE HAS AN ELECTROLYTE IMBALANCE. THE PATIENT WAS HOOKED TO A CARDIAC MONITOR AND YOU NOTE THAT HE HAS PROLONGED PR INTERVAL, WIDENED QRS AND PEAKED T WAVES. THESE FINDINGS ARE CONSISTENT WITH WHICH ELECTROLYTE ABNORMALITY?
a. Hypercalcemiab. Hypocalcemiiac. Hypokalemiad. Hyperkalemia
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HYPERKALEMIA
Most important effects are due to the role of K in membrane polarization
Peaked T waves , ST segment depression, increased PR interval, flattening of the P wave and widened QRS complex
Can lead to ventricular fibrillation Paresthesias, fasciculations, weakness and
even an ascending paralysis Cardiac toxicity precedes all these symptoms
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HYPOKALEMIA
Common in children with most cases related to gastroenteritis
Clinical Manifestations Heart and skeletal muscles are vulnerable – ECG
shows flattened T waves, depressed ST segment, and the appearance of a U wave
Muscle weakness and cramps Paralysis if <2.5meq’L Poluria and polydipsia
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69. YOU DIAGNOSE AN 8-YEAR OLD BOY AS HAVING ADRENOLEUKOYSTROPHY WITH MILD CEREBRAL INVOLVEMENT. WHAT IS THE MOST EFFECTIVE THERAPY FOR HIM?
a. Steroidsb. Bone marrow transplantationc. Lorenzo’s oild. Baclofen
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ALD
X-linked Accumulation of unbranched saturated VLCFA Treatment
CorticosteroidBMT – benefits those with neurologic
disabilityLorenzo’s oilBaclofen- for spasms
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70. A CHILD WITH UNEXPLAINED BONE PAIN, EASY BRUISABILITY, AND HEPATOMEGALY WAS SUSPECTED TO HAVE LIPID STORAGE DISEASE. ENZYME ASSAY OF CULTURED FIBROBLASTS SHOWED DEFECTS IN B-GLUCOSIDASE ACTIVITY. WHICH OF THE FOLLOWING DISEASES DOES HE HAVE?
a. Gaucher diseaseb. Niemann-Pick diseasec. Tay-sachs diseased. Sandhoff disease
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LIPIDOSES
Disorder Enzyme defect
Gaucher B glucosidase
Niemann-Pick Acid sphingomyelinase
Tay-Sachs B hexoseaminidase
Sandhoff B hexoseaminidase
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71. WHICH OF THE FOLLOWING IS TRUE ABOUT ANOREXIA NERVOSA/
a. Fear of not being able to stop eating
b. Refusal to maintain body weight over a minimal weight for age and height
c. Absence of at least 2 consecutive expected menstrual cycles
d. Self evaluation is not influenced by weight and height
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ANOREXIA NERVOSA AND BULIMIA Anorexia
Intense fear of becoming obese, which does not diminish as weight loss progresses
Disturbance in the way in which one’s body weight, size or shape is experienced
Refusal to maintain BW over a minimal normal weight for age and height
Absence of at least 3 consecutive menstrual cycles Bulimia
Recurrent episodes of binge eating Fear of not being able to stop eating Self induced vomiting Minimum average of 2 binge eating per week x 3
mos Self evaluation is unduly influenced by boy weight
and shape
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72.A TEENAGE GIRL WITH ENDOMETRIOSIS IS COMPLAINING OF PAINFUL CRAMPS DURING MENSES. SHE HAS
a. Dysfunctional uterine bleeding
b. Primary dysmenorrheac. Secondary dysmenorrhead. Premenstrual syndrome
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PAINFUL MENSTRUAL CRAMPS
Primary DysmenorrheaAbsence of any specific pelvic
pathologic conditionMost commonProstaglandins F2 and E2
Secondary dysmenorrheaResults from an underlying structural
abnormality of the cervix or uterus, a foreign body , endometriosis or endometritis
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73. DRUG OF CHOICE FOR ANAPHYLAXIS
a. Epinephrineb. Diphenhydraminec. Loratadined. Cyproheptadine
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ANAPHYLAXIS
A serious allergic reaction that is rapid in onset and may cause death
Pathologic features – acue pulmonary hyperinflation, pulmonary edema, intra alveolar hemorrhaging, visceral congestion, laryngeal edema and urticaria and angioedema
Activation of mast cells and basophils via cell bound allergen specific IgE molecules
Treatment: IM or IV epinephrine
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74. WHICH OF THE FOLLOWING IS RARELY TRANSMITTED PERCUTANEOUSLY?
a. Hepatitis Ab. Hepatitis Bc. Hepatitis Cd. Hepatitis D
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75. WHICH OF THE FOLLOWING MARKERS TELLS YOU THAT YOUR PATIENT WITH HEPATITIS B IS HIGHLY INFECTIVE?
a. HBsAgb. HBeAgc. IgM anti-HBcd. Anti-HBc
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HEPATITIS B MARKERS
HBsAg – first marker to appear; its rise coincide with appearance of symptoms
HBeAg – present during acute phase and indicates a highly infectious state
Anti-HBcAg IgM – rises early after infectionMost valuable single serolologic
marker of acute HBV infection Anti-HBc IgG – replaces IgM Anti HBsAg – present among
immunized persons
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76. THE BEST WAY TO PREVENT DIARRHEA IN INFANCY IS
a. Proper hygieneb. Immunizationc. Boil waterd. Breastfeed
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77. A 1 YEAR OLD CHILD WITH MEASLES MUST BE GIVEN VIT A. WHICH IS THE CORRECT DOSE?
a. 50,000 IUb. 100,000 IUc. 150,000 IUd. 200,000 IU
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VITAMIN A IN MEASLES
Reduces morbidity and mortality
6 mos- 1yr : 100,000 IU1 yr older : 200,000 IU
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78. WHICH OF THE FOLLOWING IS EXPECTED OF A 4 YEAR OLD?
a. Tell a storyb. Name 4 colorsc. Draw a triangled. Dress and undress
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GROSS MOTOR MILESTONES
Mean Age (mos)Mean Age (mos) MilestonesMilestones
33 Head controlHead control
55 Roll overRoll over
66 Sit with supportSit with support
88 Sit aloneSit alone
99 Pulls to stand holding onPulls to stand holding on
1111 Stand independentlyStand independently
1515 Walk aloneWalk alone
2424 Climb up and down stairsClimb up and down stairs
3636 Ride a trikeRide a trike
4848 Hop on one footHop on one foot
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EXPRESSIVE LANGUAGE MILESTONES
AgeAge
(mos)(mos)
MilestonesMilestones AgeAge
(yrs)(yrs)
MilestonesMilestones
33 Vocalizes and coosVocalizes and coos 22 2-word phrases2-word phrases
66 BabblesBabbles 33 3-word sentence3-word sentence
Gives full name,age,sexGives full name,age,sex
88 Says dada,mama Says dada,mama non-specificallynon-specifically
44 Repeats 3-word sentenceRepeats 3-word sentence
Speech 100% intelligibleSpeech 100% intelligible
1010 First words other First words other than mama, dadathan mama, dada
55 Uses past tense of eat, Uses past tense of eat, run, gorun, go
1212 Immature Immature jargon,second wordjargon,second word
66 Gives word for definitionGives word for definition
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79. WHICH OF THE FOLLOWING IS A CONTRAINDICATION TO ROUTINE CHILHOOD IMMUNIZATION?
a. Maternal viral illnessb. Antibiotic treatment of a
childc. Fever (temperature of 37.8C)d. None of the above
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80. PULMONARY VASCULAR RESISTANCE FALLS RAPIDLY AT BIRTH DUE TO
a. Rise in arterial pO2b. Closure of the ductus
arteriosusc. Increase in pulmonary blood
flowd. Decrease in tortuosity of the
pulmonary vasculature
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Pulmonary resistance & pressure
blood from R ventricle enter the
pulmonary circulation
L atrial pressure
physiologic closure of foramen ovale
O2 content
muscular constriction and functional closure
of patent ductus arteriosus
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81. AN 18-YEAR OLD GIRL WITH PRIMARY AMENORRHEA, SHORT STATURE, WEBBED NECK AND COARCTATION OF THE AORTA CONSULTS AT YOUR CLINIC. THE MOST LIKELY DIAGNOSIS IS:
a. Marfan syndromeb. Down syndromec. Palau syndromed. Turner syndrome
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TURNER SYNDROME Incidence: 1 /4000 Complete or partial absence of the
x chromosome 45x Findings
Phenotypically female Short stature Underdeveloped gonads Webbed neck
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82. NOT A CONTRAINDICATION TO LUMBAR TAP
a. Papilledemab. Gaping wound at L2-L5 areac. Pending cerebral herniationd. Platelet count of 100 x 109 /L
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83. A PATIENT WITH HEMOPHILIA B IS BLEEDING PROFUSELY. WHICH OF THE FOLLOWING WILL YOU TRANSFUSE
a. Fresh frozen plasmab. Factor IX concentratec. Cryoprecipitated. Platelet concentrate
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Hereditary Clotting Factor Deficiencies Factor VIII or IX (Hemophilia A or B) Inc APTT, normal PC, BT, PT, thrombin time Hallmark: hemarthrosis
Von Willebrand Disease Most common hereditary bleeding disorder Sx of mucocutaneous bleeding Inc BT, PTT, normal PC
Liver Disease Clotting factors produced in the liver except VIII Treatment consists of replacement with FFP or
cryoprecipitate
HEMORRHAGIC AND THROMBOTIC DISEASES
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84. THE PATENT FORAMEN OVALE FUNCTIONALLY CLOSES AT:
a. 10-15 hours of lifeb. 24 hours of lifec. 1 month of lifed. 3 months of life
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CLOSURE OF SHUNTS
Foramen ovaleFunctionally closed by the 3rd
monthDustus arteriosus
Functional closure by the 10-15th HOL
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85. CYSTIC HYGROMA OCCURS MOST FREQUENTLY IN THE
a. Abdomenb. Extremityc. Head and neckd. Chest
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CYSTIC HYGROMAS AND LYMPHANGIOMAS
Arise in the embryonic lymph sac and are the 2nd most common benign vascular tumors in children (1st – hemangiomas)
Half – located in the head and neck area 50% are present at birth, with most
presenting by 2 y/o
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86. WHICH IS THE DRUG OF CHOICE FOR PROPHYLACTIC TREATMENT OF FEBRILE SEIZURES?
a. Phenobarbitalb. Phenytoinc. Carbamazepined. None of the above
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FEBRILE SEIZURES 6 mos – 60 mosRare before 9 mos and after 5 years oldRapid increase in temperature (>39C)r/o CNS infection or metabolic causesUsually generalized, tonic-clonic and
lasts for a few secondsSimple vs complex (>15 min, repeated
convulsions, focal findings)LP, EEG, imaging proceduresAnticonvulsants and Diazepam?
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87. WHICH OF THE FOLLOWING IS ASSOCIATED WITH GASTRITIS AND PEPTIC ULCER DISEASE?
a. Escherichia colib. Mycoplasma pneumoniaec. Helicobacter pylorid. Enterobius vermicularis
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88. WHICH OF THE FOLLOWING IS AN INDICATION FOR PACKED RBC TRANSFUSION IN CHILDREN?
a. Acute blood loss of 15% of total blood volume
b. Hemoglobin of 11 mg/dl preoperatively
c. Hemoglobin of 9 mg/dl but asymptomatic
d. Hemoglobin of 10 mg/dl in congestive heart failure
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PEDIATRIC RBC TRANSFUSIONS
Acute loss > 25% of circulating blood volume
Hgb < 8 g/dl in perioperative period Hgb <13 g/dl and severe
cardiopulmonary disease Hgb <8 g/dl and symptomatic chronic
anemia Hgb < 8 g/dl and marrow failure
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89. WHICH OF THE FOLLOWING VALUES TELLS YOU THAT A CHILD HAS SEVERE MALNUTRITION BASED ON WATERLOWE CLASSIFICATION?
a. 60%b. 70%c. 80%d. 90%
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91. ANTIDOTE FOR IRON TOXICITY
a. N-acetylcysteineb. Deferoxaminec. Naloxoned. EDTA
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POISONING Acetaminophen
Acute toxic dose: 200mg/k Tx: N-acetylcysteine (NAC)
Salicylates 150mg/k Gastric decontamination, hydration, urinary excretion,
Dialysis Iron
>60 mg/k of elemental iron Deferoxamine
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92. WHICH OF THE FOLLOWING IS A DIAGNOSTIC ABDOMINAL X-RAY FINDING OF NECROTIZING ENTEROCOLITIS?
a. Air fluid levels in the bowelsb. Dilated bowel loopsc. Pneumatosis intestinalisd. Dilated proximal bowel with
constriction distally
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NECROTIZING ENTEROCOLITIS
Necrotizing Enterocolitis- most common life threatening emergency of the GI tract in the newborn periodPneumatosis intestinalisTriad: abdominal distention, gastric
retention, bloody stoolsTx: no definitive tx for established NEC;
only supportive care and preventing further injury
If tx is needed: surgery and Metronidazole
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93. A CHILD WITH ACRODERMATITIS ENTEROPATHICA, POOR WOUND HEALING AND GROWTH RETARDATION HAS:
a. Iron deficiencyb. Selenium deficiencyc. Taurine deficiencyd. Zinc deficiency
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ZINC
Acrodermatitis enteropathica – rare autosomal disorder caused by an inability to absorb sufficient zinc from the diet
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94. CONTRAINDICATION TO MMR VACCINATION
a. Breastfeedingb. Pregnancyc. Tuberculosisd. Diarrhea
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95. PEUTZ-JEGHERS SYNDROME PRESENTS AS POLYPOSIS OF THE SMALL BOWELS AND WHICH OF THE FOLLOWING?
a. Nasal polyposisb. Hemangiomac. Hyperpigmented macules on
the face lips, and buccal mucosa
d. Periungual desquamation
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PEUTZ-JEGHERS SYNDROME
Characterized by melanotic papules on the lips and mucous membranes and by gastrointestinal polyposis
Autosomal dominant Polyposis usually involves the jejunum and
ileum but may also involve the stomach, duodenum, colon and rectum
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96. AN IMPORTANT REFLEX TO FACILITATE BREASTFEEDING
a. Moro reflexb. Palmar grasp reflexc. Rooting reflexd. Parachute reflex
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NUTRITION Breastfeeding vs Formula feeding
Advantages Techniques
Rooting reflex Sucking reflex: prolactin (AP) – milk secretion
oxytocin (PP) - contraction Swallowing reflex
Contraindications Septicemia HIV Active TB Typhoid fever Breast CA Malaria Substance abuse and severe neuroses or psychoses
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97. AT WHAT AGE CAN THE SNELLEN CHART BE USED TO ASSESS VISUAL ACUITY
a. 2 yearsb. 3 yearsc. 4 yearsd. 5 years
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98. A 15 YEAR OLD HAD HIS UPPER CENTRAL INCISOR KNOCKED OUT OFF THE SOCKET. HE WANTS IT REPLANTED. IN WHAT MEIUM SHOULD THE TOOTH BE TRANSPORTED?
a. Cow’s milkb. Tap waterc. Normal salined. Water with sugar
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A viable periodontal ligament (PDL) is important for proper physiologic healing of replanted teeth. One of the critical factors affecting outcome is the way the tooth is handled during the extraoral period. A suitable storage medium should have a physiologic osmolality in order to keep the PDL cells in as healthy a condition as possible. Milk has an osmolality within physiologic limits. In vitro studies suggest that it is superior to saliva (Blomlof and Otteskog 1980) and to Eagle’s medium (Blomlof 1981) and other media (Ashkenazi et al. 1999, Lekic et al. 1998) in terms of PDL cell viability. Milk appears to be the storage medium of choice in an emergency situation, although a new storage medium: Propolis may be better (Martin and Pileggi 2004)
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99. WHICH OF THE FOLLOWING SLEEPING POSITIONS HAS BEEN NOTED TO DECREASE THE INCIDENCE OF SUDDEN INFANT DEATH SYNDROME?
a. Supineb. Pronec. Sided. Any of the above
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SIDS Sudden death of an infant that is
unexpected by history and unexplained by thorough post mortem examination, which includes autopsy, investigation of the scene of death, and review of the medical history
Environmental and genetic risk factors Infant sleep environment: sleeping
prone has consistently shown to increase the risk of SIDS
Recommendation: supine position
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100. A CHILD ACCIDENTALLY INGESTED A BLEACHING SOLUTION (ZONROX). WHICH OF THE FOLLOWING SHOULD BE THE INITIAL MANAGEMENT?
a. Give large amount of milkb. Induce emesisc. Gastric lavaged. Rinse the mucosa
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POISONING
Caustics Acids and Alkali Thorough removal Emesis and lavage are contraindicated Activated charcoal should not be used
Insecticides SLUDGE ( salivation, lacrimation, urination,
defacation, gastrointestinal cramps, emesis) Antidotes: atropine and pralidoxime
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THANK YOU!