Donor selection & blood collection

Question 1

3 phases of donor screening

Answer 1

1. registration
2. health history interview
3. physical examination

Question 2

donor registration

Answer 2

picture ID
donor information
must be at least 16! (16 need parental consent)

Question 3

how often can whole blood donors donate?

Answer 3

1 unit every 8 weeks

Question 4

how often can platelet pheresis donors donate?

Answer 4

every 14 days & not more than 24 x a year

Question 5

Age to donate?

Answer 5

16 w/ parental consent

Question 6

recent pregnant donor?

Answer 6

at least 6 weeks after delivery

Question 7

confidential unit exclusion

Answer 7

allow donors w/ risk factors a way to ‘save face’ if pressured to donate
opportunity to allow blood unit to be discarded after donation

Question 8

types of deferrals

Answer 8

permanent
temporary
indefinite

Question 9

AIDS deferral

Answer 9

AIDS, HIV, HTLV- permanent deferral

including any recent symptoms/ risk factors: male homosexual sex, IV drug use, prostitution, etc etc

Question 10

Hepatitis deferral

Answer 10

HBV/HCV- permanent deferral
received human source pituitary growth hormone
donors w/ yellow jaundice

Question 11

Severe acute respiratory syndrome (SARS)

Answer 11

14 days deferral for donors that have traveled to endemic countries
28 day deferral for donors that have been diagnosed w/ SARS

Question 12

West Nile Virus

Answer 12

active infection - 14 days after resolution of disease & 28 days after onset of fever

Question 13

Creutzfeldt-Jakob CJD

Answer 13

indefinite deferral
any donor that spent 3 months or more in the UK between 1980-1996
any donor that received injection of bovine insulin manufactured from cattle in the UK since 1980

Question 14

> 12 month deferral for donors with:

Answer 14

accidental needle stick
close contact to yellow jaundice
transfusions of blood
exposed to animal needing rabies vaccine
syphilis 
travels to areas endemic for malaria

Question 15

Malaria

Answer 15

3 year deferral

Question 16

babesiosis infection

Answer 16

permanent deferral

Question 17

Chaga’s disease

Answer 17

indefinite deferral

Question 18

Personnel stationed in Iraq

Answer 18

due to Leishmaniasis, deferral for 1 year from last date of departure

Question 19

blood cancers:

Answer 19

permanent deferral

Question 20

sickle cell anemia

Answer 20

permanent deferral

Question 21

antibiotic therapy

Answer 21

10 day deferral after last dose

Question 22

aspirin therapy

Answer 22

48 hr deferral if plts are being prepared

Question 23

Physical exam

Answer 23

‘healthy’
>110 lbs
temperature <37.5

Question 24

hemoglobin requirements for allogenic & autologous

Answer 24

allogeneic: Hgb -12.5 & Hct - 38%
autologous: Hgb- 11 & Hct-33%

Question 25

Apheresis

Answer 25

whole blood is removed from donor & a component is mechanically removed
sodium citrate is anti-coagulant
plts, leukocytes, plasma