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Transcript of Hematology Oncology Board Review Anas Sawas. Blood Transfusion Reactions Febrile Non-Hemolytic...
![Page 1: Hematology Oncology Board Review Anas Sawas. Blood Transfusion Reactions Febrile Non-Hemolytic Transfusion Reaction (FNHTR) Simple Allergic (Urticarial)](https://reader036.fdocuments.net/reader036/viewer/2022062320/56649f475503460f94c6995c/html5/thumbnails/1.jpg)
Hematology Oncology Board
Review Anas Sawas
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Blood Transfusion Reactions
Febrile Non-Hemolytic Transfusion Reaction (FNHTR)
Simple Allergic (Urticarial) Reaction Acute Hemolytic Transfusion Reaction (AHTR) Transfusion Associated Sepsis Severe Allergic (Anaphylactic) Reaction Transfusion Related Acute Lung Injury (TRALI) Transfusion-Associated Circulatory Overload (TACO)
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Febrile Non-Hemolytic Transfusion Reaction (FNHTR)
Patient receiving blood transfusion develops chills or fever (<1 C increase)
Occurs during or up to 4 hours after
Incidence: 1:500
Pathophysiology: Cytokine mediated
Treatment:
Stop transfusion while continuing to give patient normal saline
Acetaminophen Resume transfusion if patient symptoms subside while
observing patient for 15-30 min
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Simple Allergic (Urticarial) Reaction
Occurs during or a few hours after Incidence: 1:3 – 1:300 ONLY transfusion reaction where if mild you can
continue transfusion Pathophysiology: antigen-antibody interaction
Treatment: Diphenhydramine
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Acute Hemolytic Transfusion Reaction (AHTR) Life-threatening reaction caused by acute intravascular
hemolysis of transfused RBCs can lead to DIC/ARF/ Shock
Incidence: 1:38,000 – 1:70,000 and Mortality: 1:30
Usually due to ABO incompatibility often caused by a clerical error
Symptoms: fever, chills, flank pain, and oozing from intravenous sites
Diagnosis: Pink Plasma , Coombs Test
Treatment:
STOP Transfusion Aggressive hydration
Notify Blood Bank
Send labs: Chem, Hg/Hct, Blood Type and screen, Coombs test
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Transfusion Associated Sepsis
Occur in first hour of transfusion and is Rare
Caused by transfusion of a product that contains a microorganism and endotoxin
Symptoms: fever, chills, and hypotension.
Treatment:
STOP transfusion Notify blood bank
Culture blood (recipient and donor)
Broad spectrum antibiotics
Fluids and Pressors if needed
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Severe Allergic (Anaphylactic) Reaction Occur at the start of the transfusion and up to 4 hrs following
the transfusion
Incidence: 1:20000- 1:50000
Presentation: angioedema, wheezing, respiratory distress and/or hypotension
Treatment:
STOP Transfusion
Supportive Care and Airway management
Epinephrine
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Transfusion Related Acute Lung Injury (TRALI) Life-threatening emergency
Occur during or up to 6 hours following transfusion
Incidence: 1:5,000-1:150,000
Pathophysiology: HLA antibodies react with antigens on recipient granulocytes. Triggers an inflammatory response in the pulmonary vasculature
Presentation: pulmonary edema, tachypnea, tachycardia – hypotension, frothy pink sputum and/or fever
Treatment: Stop transfusion
Supportive (monitor, airway, hemodynamics) NO LASIX
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Transfusion-Associated Circulatory Overload (TACO)
Occur few hours following transfusion
Pathophysiology : pulmonary edema 2/2 to volume overload and more common in patients with cardio vascular disease.
Presentation: pulmonary edema, tachypnea, tachycardia, Hypertension
Treatment:
STOP Transfusion Supportive (monitor, airway, hemodynamics)
Lasix
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What is the appropriate intervention for itching associated with a blood transfusion?
A. AcetaminophenB. Acute hemolytic workupC. DiphenhydramineD. Observation
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What is the appropriate intervention for itching associated with a blood transfusion?
A. AcetaminophenB. Acute hemolytic workupC. DiphenhydramineD. Observation
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A 56-year-old man presents with an upper GI bleed from ulcer and a HG of 8. A transfusion of PRBC is started. 60 min later, pt has increased shortness of breath and his oxygen saturation drops to 91% on room air chest X-ray is shown. What management is indicated?
A. Ceftriaxone and Vancomycin B. Hydrocorisone and
diphenhydramine C. Intubate and Stop Transfusion D. Slow the rate of infusion
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A 56-year-old man presents with an upper GI bleed from ulcer and a HG of 8. A transfusion of PRBC is started. 60 min later, pt has increased shortness of breath and his oxygen saturation drops to 91% on room air chest X-ray is shown. What management is indicated?
A. Ceftriaxone and Vancomycin B. Hydrocorisone and
diphenhydramine C. Intubate and Stop Transfusion D. Slow the rate of infusion
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Which of the following viruses represents the most common infection transmitted in blood transfusion?
A. Hepatitis AB. Hepatitis BC. Hepatitis CD. HIV
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Which of the following viruses represents the most common infection transmitted in blood transfusion?
A. Hepatitis AB. Hepatitis BC. Hepatitis CD. HIV
The risk of hepatitis B transmission is 1 in 200,000 – 500,000
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Coagulopathy
Hemophilia Hemophilia A : Factor VIII deficient Hemophilia B : Factor IX deficient
Von Willebrand Disease
Medication Complications
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Hemophilia
X-linked recessive mutation Incidence: Hemophilia A 1:5000 male live births,
Hemophilia B 1:30000 Presentations: bleeding and bruising easily Diagnosis: factor VIII and IX activity levels and aPTT Treatment:
Factor VIII or IX replacement: wt x 0.5 x desired activity %
FFP ( 1 u of Factor VIII per 1 ml)
Cryoprecipitate ( 100 u of Factor VIII per bag)
DDAVP
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Von Willebrand Disease Autosomal Dominant, most common bleeding disorder
Function: involved in platelet adhesion to collagen, platelet aggregation and protects Factor VIII
Pathophysiology: Attaches to platelets by glycoprotein Ib receptor and connects subendothelium with platelets. Protects FVIII and delivers FVIII to the site of injury
Presentations: bleeding, epistaxis, hemarthroses, hematuria.
Diagnosis: Increased bleeding time and decreased vWF activity
Treatment:
DDAVP
Non-recombinant Factor VIII
Cryoprecipitate
Anti-Fibirolytics: Amicar and TXA
Estrogen OCP
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Heparin
Pathophysiology: activates ATIII and inactivates Xa and Thrombin. Prevents fibrin clot
Monitor activity by aPTT
Antidote: Protamine Sulfate Transfuse PRBCs or PLT if needed
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Heparin Induced Thrombocytopenia
Patient on heparin develops > 50 % drop in PLTs Pathophysiology: immune mediated destruction of
platelets Diagnosis: when suspected send HIT assay,
calculate 4 Ts score ( Timing, Thrombocytopenia, Thrombosis or other causes for thrombocytopenia )
Treatment : STOP Heparin
Give non-heparin anticoagulant
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Warfarin
Pathophysiology: Vit K antagonist affecting factors II, VII, IX, X. Protein C and S.
Monitor activity by INR Reversal:
FFPVit K PCC
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Reversal for Newer Agents
Plavix Platelets
Pradaxa FFP, Cryoprecipitate (Factor VIII
and vWF) , PCC (Factors II, VII, IX and X) and dialysis. Antidote on the way
Apixaban, Rivaroxaban (Xalerto) FFP, Cryo, PCC
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A 6-year-old boy is brought in by his father 1 hour after sustaining a head injury. He was riding his bicycle down a hill and fell off after it struck a branch; he was not wearing a helmet. Medical history is significant for hemophilia A. Which of the following is the first step in management? A. Blood transfusion using 0-negative whole
blood B. CT C. Factor VIII therapy to 100% activity D. Factor IX therapy to 50% activity
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A 6-year-old boy is brought in by his father 1 hour after sustaining a head injury. He was riding his bicycle down a hill and fell off after it struck a branch; he was not wearing a helmet. Medical history is significant for hemophilia A. Which of the following is the first step in management? A. Blood transfusion using 0-negative whole
blood B. CT C. Factor VIII therapy to 100% activity D. Factor IX therapy to 50% activity
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In which of the following conditions is the patient most likely to have anormal platelet count?
A. Disseminated intravascular coagulation B. Excessive hemorrhage C. Hemolytic uremic syndrome D. von Willebrand disease
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In which of the following conditions is the patient most likely to have anormal platelet count?
A. Disseminated intravascular coagulation B. Excessive hemorrhage C. Hemolytic uremic syndrome D. von Willebrand disease
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A 43-year-old woman with a history of von Willebrand disease presents with epistaxis. Vital signs are unremarkable and exam reveals oozing from the right nares despite pressure. Which treatment is indicated in this patient’s management?
A. Cryoprecipitate B. Desmopressin C. Factor VIII concentrate D. FFP
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A 43-year-old woman with a history of von Willebrand disease presents with epistaxis. Vital signs are unremarkable and exam reveals oozing from the right nares despite pressure. Which treatment is indicated in this patient’s management?
A. Cryoprecipitate B. Desmopressin C. Factor VIII concentrate D. FFP
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A 4-year-old boy with hemophilia B presents to the ED after he fell from the monkey bars and struck his head on the ground. On exam, he has a large occipital hematoma and a GCS of 14. Which of the following should be administered? A. Cryoprecipitate B. Factor IX concentrate C. Factor VIII concentrate D. Recombinant human factor VIIa
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A 4-year-old boy with hemophilia B presents to the ED after he fell from the monkey bars and struck his head on the ground. On exam, he has a large occipital hematoma and a GCS of 14. Which of the following should be administered? A. Cryoprecipitate B. Factor IX concentrate C. Factor VIII concentrate D. Recombinant human factor VIIa
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A 44-year-old man is transferred from a nursing facility for thrombocytopenia. He was transferred 6 days ago for pulmonary embolism and is on low-molecular weight heparin. His platelets have fallen from 352 to 100. There is no active bleeding at this time. Which of the following is the most likely management indicated? A. Continue current therapy B. Order heparin-induced platelet aggregation
studies and continue therapy while awaiting results C. Stop heparin and start Fondaparinux D. Transfuse platelets
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A 44-year-old man is transferred from a nursing facility for thrombocytopenia. He was transferred 6 days ago for pulmonary embolism and is on low-molecular weight heparin. His platelets have fallen from 352 to 100. There is no active bleeding at this time. Which of the following is the most likely management indicated? A. Continue current therapy B. Order heparin-induced platelet aggregation studies
and continue therapy while awaiting results C. Stop heparin and start fondaparinux D. Transfuse platelets
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