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BOC Transfusion Practice Question Pool Questions with 100% correct answers
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BOC Transfusion PracticeDeglycerolized red blood cells are used to transfuse patients with:
a. an antibody to a high-incidence red cell antigen
b. anti-c and anti-K alloantibodies
✅✅
c. chronic anemia
d. increased risk of CMV infection - -A
The primary indication for granulocyte transfusion is:
a. prophylactic treatment for infection
b. additional supportive therapy in those patients who are responsive to antibiotic
therapy
c. clinical situations where bone marrow recovery is not anticipated
✅✅
d. severe neutropenia with an infection that is nonresponsive to antibiotic therapy -
-D
A 42 year old male of average body mass has a history of chronic anemia requiring
transfusion support. Two RBC are transfused. If the pretransfusion hemoglobin was
7.0 g/dL, the expected posttransfusion hemoglobin concentration should be:
a. 8.0 g/dL
b. 9.0 g/dL
✅✅
c. 10.0 g/dL
d. 11.0 g/dL - -B
How many units of RBC are required to raise the hematocrit of a 70 kg nonbleeding
man from 24% to 30%?
a. 1
b. 2
✅✅
c. 3
d. 4 - -B
For which of the following transfusion candidates would CMV-seronegative blood be
most likely indicated?
a. renal dialysis patients
b. sickle cell patient
✅✅
c. bone marrow and hematopoietic cell transplant recipients
d. CMV-seropositive patients - -C
Washed RBC indicated in which of the following situations?
a. an IgA-deficient patient with a history of transfusion-associated anaphylaxis
b. a pregannt woman with a history of HDN
✅✅
c. a patient with a positive DAT and red cell autoantibody
d. a newborn with a hematocrit <30% - -A
, What increment of platelets/uL, in the typical 70 kg human, is expected to result from
each single unit of Platelets transfused to a non-HLA-sensitized recipient?
a. 3,000- 5,000
b. 5,000- 10,000
✅✅
c. 20,000- 25,000
d. 25,000- 30,000 - -B
Platelet transfusions are of most value in treating:
a. hemolytic transfusion reaction
b. posttransfusion purpura
✅✅
c. functional platelet abnormalities
d. immune thrombocytopenic purpura - -C
Guidelines for emergency release of blood require that:
a. ABO group and Rh typing of recipient be performed before the unit is released
b. only group O Whole Blood be issued
✅✅
c. only Rh-negative blood is used for Rh-negative patients
d. the physician signs a document authorizing the emergency release - -D
In an emergency situation, what type of blood should be given to a female patient of
child bearing age if the ABO group and Rh type are unknown?
a. Group O, Whole blood should be given
b. Group O, Rh-negative red cells should be given
✅✅
c. Group O, Rh-positive red cells should be given
d. Group O, Washed Red blood cells should be given - -B
Which of the following statements regarding red cell transfusion to infants less than 4
months old is correct?
a. only phenotype identical units should be issued
b. fresher units (generally <7 days) should be issued
✅✅
c. irradiated blood components are contraindicated
d. crossmatching with a current sample is required for each tranfusion - -B
Cryoprecipitated AHG transfusion is recommended as a treatment for patients with:
a. type 1 vWF disorder
b. factor V coagulation deficiency
✅✅
c. factor VIII coagulation deficiency
d. DIC with hypofibrinogenemia - -D
Although ABO compatibility is preferred, ABO incompatible product may be
administered when transfusing:
a. single donor plasma
b. cryoprecipitated AHF
c. fresh frozen plasma
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