BLOOD PRESERVATIVES/ADDITIVES / REJUVENATION II/ FREEZING

Question 1

what are the components of rejuvination

a. phosphate
b. inosine
c. pyruvate
d. glucose

Answer 1

`components of rejuvination (PIGPA/ PIPA)
P= phosphate
i- inosine
g- gucose
p- pyruvate
a- adenine

components of additives
(SAGM)
saline, adenine, glucose, mannitol

Question 2

Currently, rejuvenated RBCs must be washed before infusion to remove the ___________ and transfused within 24 hours or frozen for long-term storage

a. phosphate
b. inosine
c. pyruvate
d. glucose

Answer 2

Currently, rejuvenated RBCs must be washed before infusion to remove the INOSINE (which may be toxic) and transfused within 24 hours or frozen for long-term storage

Question 3

HOW MANY IRON DOES 1 UNIT OF RBC HAVE

a. 220 mg
b. 200mg
c. 1.34mg
d. 250 mg

Answer 3

approximately 220 - 250mg of iron are contained in one rbc unit

Question 4

what is the shelf life for frozen RBC

a. 5 years
b. 10 years
c. 20years
d. 1 year

Answer 4

Frozen RBC Shelf life: 10 years (longest shelf life)

Question 5

what is commonly used freezing agent

a. rejuvesol
b. adenine
c. glucerol
d. glucose

Answer 5

freezing agent- Glycerol

rejuvinating agent - rejuvesol

Question 6

what is type of freezer to used in high glycerol

a. mechanical
b. liquid nitrogen

Answer 6

high glycerol
- mechanical

low glycerol
- liquid nitrogen

Question 7

The thawing process takes approximately_____________ and involves immersing units into a 30° to 37°C water bath and washing the RBCs with solutions of decreasing osmolarity

a. 45 minutes
b. 20 minutes
c. 60 minutes
d. 30 minutes

Answer 7

The thawing process takes approximately 45 minutes and involves immersing units into a 30° to 37°C water bath and washing the RBCs with solutions of decreasing osmolarity

Question 8

what is the shelf life for deglycerolization

a. 42 hours
b. 24 hours
c. 6 hours
d. 32 days

Answer 8

Shelf-Life /Expiration date: 24HOURS stored at 1 to 6 ‘C

Question 9

Deglycerolized blood product should ensure_____ RBC MASS RECOVERY

a. 85%
b. 80%
c. 75%
d. 905

Answer 9

Deglycerolized blood product should ensure 80% RBC MASS RECOVERY

leukoreduced
- 85%

Question 10

synthetic hydrocarbon structures in which all hydrogen atoms have been replaced with fluorine

a. HBOCs
b. perfluorocarbons
c. nota
d. aota

Answer 10

Perfluorocarbons are synthetic hydrocarbon structures in which all hydrogen atoms have been replaced with fluorine

Question 11

what is the storage for platelets

a. 37 degree celsius
b. 2-6 degree celsius
c. -2 to -6 degree celsius
d. 20 - 24degree celsius

Answer 11

Platelets are stored at 20°C to 24°C with maintaining continuous gentle agitation throughout the storage period of 5 days.