BLOOD COMPONENTS Q'S

Question 1

T or F (correct shelf life?): Deglycerolized RBCs— 24 hours

Answer 1

T

Question 2

Each unit of cryoprecipitate prepared from whole blood should contain a minimum of how many units of AHF activity?

Answer 2

80 IU

Question 3

Platelet concentrates prepared by apheresis should con10. tain how many platelets?

Answer 3

3*10^11

Question 4

The required storage temperature for frozen RBCs using the high-glycerol method is:

Answer 4

≤ –65°C

Question 5

How does irradiation affect the shelf life of red blood cells?

Answer 5

The expiration date is 28 days from the date of irradiation or the original outdate, whichever is sooner

Question 6

Once thawed, FFP must be transfused within __________ hours unless relabeled as thawed plasma:

Answer 6

24

Question 7

Quality control for nonadditive RBCs requires a maxi- mum hematocrit level of:

Answer 7

80%

Question 8

AHF concentrates are used to treat:

Answer 8

Hemophilia A

Question 9

Prothrombin complex concentrates are used to treat which of the following?

Answer 9

Factor IX deficiency

Question 10

RBCs that have been leukoreduced must contain less than ______ leukocytes and retain at least ______ of original RBCs.

Answer 10

5 × 10 6 /85%

Question 11

Random-donor platelets that have been leukoreduced must contain less than ______ leukocytes.

Answer 11

8.3 × 10 5

Question 12

A single unit of FFP or PF24 should contain ______ mL of plasma.

Answer 12

200– 400

Question 13

Cryoprecipitate that has been pooled in an open system must be transfused within ______ hours.

Answer 13

4