Blood Components

Question 1

During the preparation of platelets from whole blood, the blood should be:

Answer 1

Cooled to 20-24 C

Question 2

Leuko Reduced RBCs must be prepared by a method known to reduce the leukocyte count to:

Answer 2

<5.0 X10^6

Question 3

A unit of RBCs that expires in 32 days has just been irradiated. The expiration date of this unit will:

Answer 3

Be reduced by 4 days

Question 4

Cryoprecipitated AHF must be transfused within what period of tine following thawing and pooling?

Answer 4

4 hours

Question 5

According to AABB standards, FFP must be infused within what period of time following thawing?

Answer 5

24 hours

Question 6

Cryoprecipitated AHF
- is indicated for fibrinogen deficiencies
-Should be stored at 4 C prior to administration
- will not transmit hepatitis B virus
- is indicated for the treatment of hemophilia B

Answer 6

Is indicated for fibrinogen deficiencies

Question 7

Which Apheresis Platelets product should be irradiated?
- autologous unit collected prior to surgery
- random stock unit going to patient with DIC
- a directed donation given by a mother for her son
- a directed donation given by an unrelated family friend

Answer 7

A directed donation given by a mother for her son

Question 8

Irradiation of a unit of RBCs is done it prevent the replication of donor:

Answer 8

Lymphocytes

Question 9

Plastic bag over wraps are recommended when thawing units of FFP in 37 C water baths because they prevent:

Answer 9

The entry ports from becoming contaminated with water

Question 10

Which of the following blood components must be prepared within 8 hours after phlebotomy?
- RBCs
- FFP
- RBCs, Frozen
-Cryoprecipitated AHF

Answer 10

FFP

Question 11

Of the following blood components, which one should be used to prevent HLA alloimmunization of the recipient?
-RBCs
-granulocytes
-irradiated RBCs
-Leuko-Reduced RBCs

Answer 11

Leuko-Reduced RBCs