Making Sense of Numbers in the NICU
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Transcript of Making Sense of Numbers in the NICU
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Making Sense of Numbers in the NICU
Pediatrics WorkshopNational SOMA Spring Convention
Washington, D.C.March 10, 2012
Lisa Marie Piwoszkin, OMS IVNational SOMA VP & SpeakerCCOM
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Objectives Introduce the basics of the newborn
resuscitation period Practice calculations for TPN orders Learn how to manage basic ventilator
settings
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WHY do you care? Complex concepts you may be
expected to know Not taught this in class Everyone required to do a pediatric
rotation!
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WHAT is the Newborn Resuscitation?
Special skill set used in the period immediately after delivery to assist the newborn transition from intrauterine to extrauterine life
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Baby’s 1st Breath
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WHERE does the Newborn Resuscitation take place?
Delivery Room Operating Room
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WHO is present during the Newborn Resuscitation?
OB crew OB/Neonatal nurse(s) Neonatologist/Pediatrician Resident(s) Medical Student(s)- YOU!
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WHAT skills are involved in the Newborn Resuscitation?
Thermoregulation (37˚C) Airway Management Stimulation Cardiovascular Support Medications
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HOW can YOU prepare? Wear gloves and mask Be aware of surroundings Make sure the appropriate help is in the room Make sure suction kit, intubation kits, and
resuscitation medications are in the room and readily available
Make sure oxygen is flowing, bag valve mask working properly and at appropriate pressure
Make sure blankets are laid out and warmer is set to 37˚C
Make sure timer is reset on warmer
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HOW can YOU participate? “Catch the Baby!” Start the timer… CONSTANTLY ASSESS THE BABY Bulb suction Dry with blankets Check for pulse Listen to lungs Watch the timer… Quick exam Put on the cap Record APGAR scores Secure side rails Congratulate the parents!
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APGAR Scores Assessment of
newborn viability› @ 1 min, 5 min, 10 min
Pneumonic & Eponym› Each letter represents a sign evaluated
in the score› Developed by Virginia Apgar, MD, leader
in anesthesiology
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APGAR Scores
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Case 1 Newborn male Full term NSVD Immediate loud cry Coughs after bulb suction Moves all four extremities Face and trunk pink, hands and feet
dusky HR 120
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Case 1 9/10 1 pt loss for color
Most NORMAL newborns only ever achieve 9/10
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Case 2 27 5/7 weeks premature female Born to G1P1 26 y/o female PPROM, NSVD Newborn required vigorous resuscitation APGARs: 6 @1min and 7 @ 5 min Birth weight:1 kg Transported to NICU, currently stable,
intubated, UVC placed
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Case 2Hungry babies are not happy babies!
← 2 arteries, 1 vein
How are we going to feed her?
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Parenteral Nutrition Intravenous nutritional support Can be started as soon as venous
access obtained
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Parenteral Nutrition TERMINOLOGY
› TPN- Total Parenteral Nutrition ALL IV, patient NPO
› PPN- Partial Parenteral Nutrition SOME IV, patient supplementing with PO
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WHAT is in TPN? Macronutrients
› Carbohydrate (dextrose)�› Protein (amino acids)�› Fat (fat emulsion)�
Micronutrients�› Vitamins & Minerals�› Electrolytes�› Trace elements�
Miscellaneous constituents�› Heparin protects line integrity�› Carnitine aids fat metabolism�› Famotidine protects stomach mucosa�
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HOW to order TPN?
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Filling out the TPN Form… Identifying information
› Patient Sticker (be careful with multiples!)› Date› Day # TPN› Current GA (weeks days/7)
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Filling out the TPN Form… Daily Information
› Dosing weight (kg) (A)› Line Access
Central- UVC, PICC, CVL Peripheral- PIV Heparin?
› Labs BMP every 1-2 days LFTs and TG at least every week
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Total Daily Fluid
TPN
Dextrose
Amino Acids
Electrolytes
Vitamins
Trace Elements
FAT Emulsion
Fat
OTHER
MedicationsInfusions
Oral Feeds
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Calculations Total Fluid (TF) (B)
› 150ml/kg/day
Total Daily Fluid Intake (B) ml/kg/day x (A) kg = (C) ml/day150 ml/kg/day x 1 kg = 150 ml/day
No Non-TPN Infusions or Enteral Rx (D)
Parenteral Feeding Allowance (C) ml - (D) ml = (E) ml150 ml – 0 ml = 150 ml
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Calculations Fat Emulsion (G)
› Separate bag!› Start with 1 gm/kg› Increase by 0.5 gm/kg/day, max 3 gm/kg› 1 gm fat dispensed in 5 ml
Fat Emulsion #gm/kg x (A) kg = (F) gm x 5 ml/gm = (G) ml1 gm/kg x 1 kg = 1gm x 5 ml/gm = 5 ml
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Total Daily Fluid
TPN
Dextrose
Amino Acids
Electrolytes
Vitamins
Trace Elements
FAT Emulsion
Fat
OTHER
MedicationsInfusions
Oral Feeds
Separate bag! X
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Calculations TPN Volume over 24 hours (H)
› Parenteral feeding allowance – intralipid volume
TPN Volume/24 hours (E) ml - (G) ml = (H) ml150 ml - 5 ml = 145 ml
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Calculations Fat Infusion Rate
› (G) / 24 hours› 5 ml / 24 hours = 0.2 ml/hr
TPN Infusion Rate› (H) / 24 hours› 145 ml / 24 hours = 6 ml/hr
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Total Daily Fluid
TPN
Dextrose
Amino Acids
Electrolytes
Vitamins
Trace Elements
FAT Emulsion
Fat
OTHER
MedicationsInfusions
Oral Feeds
Separate bag! X
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Calculations Dextrose Concentration (I) Glucose Infusion Rate (R)
› Initiate at 6-8 mg/kg/min› Increase by 1 mg/kg/day, max 13 mg/kg/min
(R) = (I) /100 x (H) /1.44 / (A)
Solve for (I)7 mg/kg/day = (I) % /100 x 145 ml /1.44 / 1 kg
(I) = 7 %
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Your New Best Friends!
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Calculations Amino Acids (J)
› Initiate at 3 gm/kg
3 gm/kg x (A) kg = (J) gm3 gm/kg x 1 kg = 3 gm
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Calculations Electrolytes
› None included in TPN until DOL #3› Allow for stabilization› Adjust day to day
Multivitamin› Check Daily
Trace Elements› Check Daily
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Calculations Enteral Calories (P)
Parenteral (TPN) Calories (Q)› Fat: (F) x 10 = (K)› Dextrose: (I) / 100 x (H) x 3.4 = (L)› Protein: (J) x 4 = (M)
› TPN Kcal/day: (K) + (L) + (M) = (N)› TPN Kcal/kg/day: (N) / (A) = (Q)
Total Calories› Total Kcal/kg/day: (Q) + (P)
X
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How will your TPN order change?
Keep track of days and age Update weight daily Know line access Know oral volumes or infusions Increase fats and dextrose Adjust fats, dextrose, amino acids,
electrolytes*, and additives as needed based on labs
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Case 3 29 0/7 weeks premature male Meconium aspiration, absent cry, required
intubation Blood Gas:
› pH 7.21› PaCO2 50› PaO2 56› HCO3 20› Base Deficit -4
What Acid-Base imbalance does he have?
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Case 3 Respiratory acidosis
How can we help reduce his acidosis?
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Affected byVentilation or Oxygenation?
pH PaCO2 PaO2 HCO3 Base Deficit
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Affected byVentilation or Oxygenation?
pH PaCO2 PaO2 HCO3 Base Deficit
VentilationVentilationOxygenationNeitherNeither
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Ventilator Settings Same indications as adults Modes
› AC- Assist Control› SIMV- Synchronous Intermittent
Mandatory Ventilation› PS- Pressure Support› CPAP- Continuous Positive Airway Pressure› BiPAP- Bilevel Positive Airway Pressure
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Ventilator Settings Rate Tidal Volume FiO2 PEEP
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Remember… pH Ventilation PaCO2 Ventilation PaO2 Oxygenation HCO3 Neither Base Deficit Neither
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AffectsVentilation or Oxygenation?
Rate Tidal Volume FiO2 PEEP
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AffectsVentilation or Oxygenation?
Rate Tidal Volume FiO2 PEEP
VentilationVentilationOxygenationOxygenation
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VentilationRate Tidal Volume
To ↑ pH ↑ ↑To ↓ pH ↓ ↓
To ↑ PaCO2 ↓ ↓To ↓ PaCO2 ↑ ↑
OxygenationFiO2 PEEP
To ↑ PaO2 ↑ ↑To ↓ PaO2 ↓ ↓
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Just remember…What’s
abnormal?What’s the problem?
What can you change?
pH or PaCO2 Ventilation Rate or Tidal
VolumePaO2 Oxygenation FiO2 or
PEEP
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Take Home Points
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Be an active participant in the newborn resuscitation!
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TPN looks hard, but doesn’t have to be.
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Know why your blood gasses are abnormal, and fix them!
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Feel smarter than a 5th grader… and some interns.
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Have Fun on Peds & Share the wealth!
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Referneces Emedicine: Neonatal Resuscitation
› http://emedicine.medscape.com/article/977002-overview#a1
Neonatology: Newborn and Acid Base Balance.› http://
www.kairos2.com/14_Acid%20base%20balance.pdf
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Contact Information Lisa Marie Piwoszkin OMS IV, CCOM [email protected]