Loading....
Coupon Accepted Successfully!

Physiology

Open Flashcards

Blood

Question
34 out of 42
 

Stored blood as compared to fresh blood has:



A More 2,3 DPG

B High extracellular K+

C High extracellular Hb

D Increased platelets

Ans. B Blood storage And Transfusion: ­

1. In bank blood that is stored, the 2,3-DPG level falls Q and the ability of this blood to release O2 to the tissue is reducedQ.

2. Cellular metabolism, membrane ion pump failure and Hemolysis during blood storage leads to Hyper kalemia and Acidaemia with rapid blood transfusion

3. At 4°C (in stored blood), the survival of platelets is considerably reduced and few are functionally usefull after 24 hours Q

4. Clotting factors VIII and V are liable and their level fall quickly in stored blood Q

5. Each unit contain - 450 ml of blood and 60ml CPD solution (citrate - phosphate - dextrose) Q

6. One unit of whole blood will raise the Hb% by Igm/dL Q

7. CPD blood has shelf-life of 3 weeks while - CPD-A (Adenosine) has 1 -5 weeks. Q

8. Blood transfusion in anaesthetized pts especially in children, are vulnerable to hypothermia

9. Blood filters remove micro-aggregates of more than 20μm diameter during transfusion. The ordinary infusion set-filter pore size is about 170μm,

10. Definition of the massive blood transfusion: ­

5 units blood in 1 hours in 70kg adult.

or, total blood volume replacement by stored blood in under 24 hours.

11. Acid-citrate dextrose (ACD) blood stored for 21 days while CPD blood can be usefully stored for 35 days Q

Blood Flashcard List

42 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
41)
42)