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All of the following are symptoms of an allergic reaction except:


A) pruritus.
B) local erythema.
C) anemia.
D) hives.

E) All of the above
F) B) and C)

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A patient transfused with 2 units of packed red blood cells demonstrated signs of a transfusion reaction just before the second unit was completely infused. Hypotension, fever, and back pain are the immediate symptoms. Blood work reveals a 3% drop in hematocrit and prolonged PT. What therapy is given to correct the PT?


A) FFP
B) Dopamine
C) Platelet concentrates
D) Mannitol

E) None of the above
F) B) and C)

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All of the following are diseases that can mimic a transfusion reaction except:


A) AML.
B) hemoglobin C disease.
C) G6PD deficiency.
D) PNH.

E) A) and C)
F) A) and D)

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Persons with a documented history of anaphylactic reactions should be transfused with blood products.


A) IgE-deficient
B) leukodepleted
C) washed
D) irradiated

E) B) and D)
F) B) and C)

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What is the most frequent cause of circulatory overload?


A) Transfusion of a unit at too slow a rate
B) Massive transfusion of blood components
C) Transfusion of a unit at too fast a rate
D) Transfusion of a partially deglycerolized unit

E) A) and B)
F) A) and C)

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What is the most common preventable error occurring among the nursing and medical staff that results in a transfusion-related death?


A) Alloantibody misidentified
B) Improper patient identification
C) Specimen mislabeled
D) Incorrect crossmatch procedure

E) B) and C)
F) C) and D)

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Which of the following products may lead to sepsis in a patient when contaminated with Escherichia coli?


A) Packed red blood cells
B) Normal saline
C) Platelets
D) All of the above

E) A) and B)
F) None of the above

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What is the physiologic mechanism of histamine?


A) Histamine is released when the allergen-reagin complex attaches to the surface of basophils, increasing vascular dilation and permeability
B) Histamine is released when the allergen-reagin complex attaches to the surface of tissue mast cells, increasing vascular dilation and permeability
C) Histamine is released when the allergen-reagin complex attaches to the surface of eosinophils, increasing vascular dilation and permeability
D) Histamine is released when the allergen-reagin complex attaches to the surface of tissue mast cells, decreasing vascular dilation and permeability

E) All of the above
F) B) and D)

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Circulatory overload is cause by which of the following?


A) Excessive transfused fluid
B) Rapid rate of infusion
C) decreased cardiac capacity
D) All of these

E) C) and D)
F) None of the above

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How could a potential alloimmunizaton due to anti-K be prevented?


A) Matching of donor and recipient red blood cell phenotype
B) Use of third-generation bedside leukocyte filters
C) Use of washed red blood cells
D) Use of apheresed platelets

E) C) and D)
F) A) and B)

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Which of the following should be collected immediately from a patient exhibiting signs of a septic reaction to blood products?


A) DAT
B) Complete blood count (CBC)
C) Urine sample
D) Blood cultures

E) None of the above
F) A) and B)

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The plasma level of unconjugated bilirubin is elevated in:


A) intravascular hemolysis.
B) extravascular hemolysis.
C) intravascular and extravascular hemolysis.
D) none of the above.

E) A) and B)
F) B) and C)

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Which mechanism may play a role in fever development in an FNHTR?


A) Release of pyrogens from transfused white blood cells
B) The production of interleukin-6 by the complement system
C) Synthesis of prostaglandins (PGE±) in hypothalamic cells by interleukin-6
D) None of the above

E) C) and D)
F) A) and C)

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A negative direct antiglobulin test (DAT) is found in all of the following transfusion reactions except:


A) Acute nonimmune hemolytic transfusion reaction
B) Febrile nonhemolytic transfusion reaction
C) Acute immune hemolytic transfusion reaction
D) Transfusion-associated sepsis

E) B) and D)
F) All of the above

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A 35-year-old woman was transfused with 1 unit of packed red blood cells. The nurse monitoring the transfusion noticed hives on the patient's arm and an increase in body temperature. What is the choice of treatment for this patient?


A) Leukopoor blood products
B) Antihistamines
C) Premedication with aspirin
D) None of the above

E) None of the above
F) A) and B)

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What should be done in the transfusion process when the patient temperature spikes from 37.5°C to 38.5°C within 30 minutes of transfusion?


A) Continue the transfusion.
B) Stop the transfusion and keep the intravenous line open.
C) Treat with diphenhydramine (Benadryl) .
D) Affix a leukocyte filter to transfusion line.

E) B) and C)
F) None of the above

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Which of the following best describes a transfusion reaction?


A) An urticarial response to blood products occurring 1 to 2 hours after infusion
B) A physiologic response to a blood product transfused 5 to 10 days before host symptoms
C) Any unfavorable transfusion-related event occurring in a patient during or after transfusion of blood components
D) None of the above

E) A) and D)
F) A) and C)

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What groups are at risk for graft-versus-host disease (GVHD) as a result of transfusion?


A) Polycythemia vera patients undergoing a therapeutic phlebotomy
B) Fetuses receiving an intrauterine transfusion
C) Patients receiving a directed donation from a first-degree relative
D) Options B and C

E) B) and C)
F) A) and B)

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What is the pathophysiological cause surrounding anaphylactic and anaphylactoid reactions?


A) Antibody in patient serum is detected 3 to 7 days after transfusion, reacting with donor red blood cells
B) Donor plasma has reagins (IgE or IgA) that combine with allergens in patient plasma
C) A patient who is deficient in IgE develops IgE antibodies via sensitization from transfusion or pregnancy
D) A patient who is deficient in IgA develops IgA antibodies via sensitization from transfusion or pregnancy

E) C) and D)
F) B) and D)

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Immediate transfusion reaction procedures consist of all of the following except:


A) clerical check.
B) DAT.
C) serum haptoglobin.
D) visual check.

E) A) and B)
F) A) and D)

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