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Study With Me : Introduction to Blood Transfusion 36
Study With Me : Introduction to Blood Transfusion 36

Study With Me : Introduction to Blood Transfusion 36

Study With Me : Introduction to Blood Transfusion 36

SECTION 1 : Haematology

Questions and Answers

Coagulation Cascade and Blood Storage

Question 191:

What are the two pathways of the clotting cascade in blood coagulation?

Answer: The two pathways of the clotting cascade are the tissue factor pathway and the contact activation pathway, both converging into a common pathway where clotting factor X, thrombin, and fibrin are activated.

Question 192:

What does a Roman numeral followed by 'a' indicate in the clotting cascade?

Answer: In the clotting cascade, a Roman numeral followed by 'a' signifies that the clotting factor has been activated.

Question 193:

How stable are clotting factors in stored blood, except for FV, FVIII, and platelets?

Answer: Clotting factors in stored blood, except for FV, FVIII, and platelets, are relatively stable. Factor V and FVIII remain stable when frozen soon after collection to temperatures lower than –25°C.

Question 194:

For how long do platelet concentrates prepared from donated blood remain viable?

Answer: Platelet concentrates prepared from donated blood remain viable for 5 to 7 days under the correct storage conditions, including constant motion within a temperature range of 22°C ± 2°C.

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