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Flashcards in Transfusion Deck (49)
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1

what is the minimum criteria for men to donate blood?

Hb 135g/L and weight 50kg at least

2

what is the minimum criteria for women to donate blood?

Hb 125g/L and weight 50kg at least

3

the bag of whole blood is ------------ to separate into component parts?

centrifuged

4

the blood samples are tested for? (6)

HIV, Hep B, Hep C, Hep E, HTLV, Syphilis

5

red cells are stored at?

4 degrees for 35 days

6

FFP is stored at?

-30 degrees for 3 years

7

platelets are stored at?

22 degrees for 7 days with agitation

8

what are the blood components available form the transfusion lab?

red cells, FFP, platelets, cryoprecipitate

9

what are the blood products available from the transfusion lab?

Anti D immunoglobulin, prothrombin complex concentrate

10

what are the blood products available from the pharmacy?

iv immunoglobulin, human albumin, specific Ig

11

what chromosome is the ABO system on?

chromosome 9

12

what are A and B genes?

they code for transferases which modify precursor called H substance on red cell membrane

13

A and B are ------------- over O

dominant

14

A and B are?

co dominant

15

O is?

silent

16

what are the commonly encountered blood group in populations?

A and O group

17

what is the most common blood group?

O

18

what antigens are present on A group red cells?

A

19

what antigens are present on B group red cells?

B

20

what antigens are present in AB group red cells?

A and B

21

what antigens are present on O group red cells?

neither

22

what is the Lansteiner's law?

when an individual lacks the A or B antigen the corresponding antibody is producing in their plasma

23

naturally occurring antibodies cause?

hemolysis of red cells expressing the specific antigen

24

what antibodies are present in the plasma of A group?

anti B

25

what antibodies are present AB group?

neither

26

what antibodies are present in O group?

anti-A and anti-B

27

which blood group can donate to all ABO groups?

O group

28

which blood group can only donate to its blood group and AB blood gorup>

A or B

29

which blood group can donate to AB blood group only?

AB

30

what is the next most important antigen after AA & B?

RhD