Blood Banking Comps

Front 1

How soon after thawing should fresh frozen plasma be transfused?

Back 1

within 24 hours

Front 2

what temp should thawed cryoprecipatate be stored at?

Back 2

20-24 C (room temp) and be transfused within 6 hours after thawing

Front 3

what is the purpose of the major cross match?

Back 3

verify donor ABO packed cell compatibility

Front 4

how many ug if IgG anti D are in one vial? (vial is 1500 IU)

Back 4

300 ug
conversion is 1ug to 5 IU

Front 5

How often can you donate blood?

Back 5

once every 8 weeks

Front 6

when should a prewarm technique be preformed?

Back 6

when you suspect a cold antibody

Front 7

a patient will be immune to Hep B if they make an antibody to which antigen?

Back 7

Hep B surface antigen

Front 8

What temp should platelets be stored at?

Back 8

20-24 C (RT)

Front 9

when is a rise in titer significant?

Back 9

where there is a two tube increase or more

Front 10

Granulocyte concentrates need to be administered withing how many hours of collection?

Back 10

24 hours

Front 11

Which antibody is the most likely cause of a delayed hemolytic transfusion reaction?

Back 11

Anti- Jka

Front 12

Plasma exchange is a viable curing method to which condition?

Back 12

TTP (thrombotic thrombocytopenic purpura

Front 13

lectin from the seeds of Dolichos biforous make what ABO typing reagent?

Back 13

anti A1

Front 14

which RBO type group has the most H antigen?

Back 14

Group O

Front 15

which blood group system may show a cell typing change during pregnancy?

Back 15

Lewis

Front 16

what should you do if a patient starts to feel jaw numbness during a platlete aphoresis procedure?

Back 16

slow the flow rate down

Front 17

what should happen to the platelets after they complete the second spin in the prep from whole blood?

Back 17

allow to rest for 1-2 hours

Front 18

Which immunoglobulins are capable of fixing complement?

Back 18

IgG and IgM

Front 19

what is the correct method is most reliable for determining the appropriate dose of IgRh to give to patients after delivery?

Back 19

Flow Cytometry is the most accurate.

Front 20

What does ezymatic treatment do to the following systems?
Kidd
Kell
Duffy
MNS

Back 20

Kidd-enhances
Kell- nothing
Duffy- destroys
MNS- destroys M and N but may not fully destroy S

Front 21

What is the McLeod phenotype is associated with which antigen system?

Back 21

McLeod phenotype is associated with a decreased expression of the Kell antigen (K ag)

Front 22

which one antigen system is most suseptable to destruction via enzyme?

Back 22

Duffys or FyA and FyB

Front 23

When preparing blood components, How do you spin the blood and plasma to obtain concentrated platelets?

Back 23

spin whole blood on low, then express off the PRP then spin the PRP on high and express off the top PPP to leave platlet concentrates at the bottom of bag two

Front 24

Antibodies of the Rh system react best a what temp/phase?

Back 24

37/AHG phase

Front 25

Which D antigen carriers have the ability to also create anti D in their blood?

Back 25

partial D and Partial weak D

Front 26

what test is used to screen if FMH is contraindicated when the newborn has a weak D?

Back 26

a rosette test because of false negatives due to the weak D

Front 27

how many vials are needed to supplement a 0.85% bleed with the mothers total blood colume of 4565 mL.

Back 27

0.85 x 4565= 38.8 ml bleed
38.8ml/30 ml per vial= 1.3 rounds to one
1+1 extra vial= 2 vials

Front 28

which symptom of HDFN is associated with low levels of glucuronyl transferase?

Back 28

jaundice, glucunonyl transferase is a liver enzyme that conjugates bilirubin into its water-soluble, excretable form.

Front 29

what is the proper storage tem for fresh frozen plasma?

Back 29

-20 C

Front 30

Does the ability to produce anti D vary among Rh neg individuals?

Back 30

yes! some may start making anti D in as little as 0.1 ml exposure, some may not at all!

Front 31

Which antigen system is well developed on fetal blood upon birth?

Back 31

Kell (K)

Front 32

What percent of the population is Rh positive?

Back 32

85%

Front 33

What is the Kleihauer Betke tused used for?

Back 33

differentiate between maternal and fetal red cells

Front 34

Does HDFN vary significantly among different races and ethnicities?

Back 34

yes! anti D varies significantly so the frequency of HDFN in the children would also!

Front 35

What is the prozone effect related with?

Back 35

false negative because prozone effect is antibody excess!

Front 36

What is the DAT principle?

Back 36

AHG detects antibody already coated to red cells