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physiology of hematostasis Flashcards | StudBud

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Prothrombin Time (PT) test measure time for blood to clot after adding ...

thrombocytes lifespan

physiology of hematostasis

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Answers

1
thrombocytes lifespan
a few years
7-8 h
8-12 days
120 days
2
Prothrombin Time (PT) test measure time for blood to clot after adding ...
tissue factor, assessing intrinsic pathway
tissue factor, assessing extrinsic pathway.
tissue factor, assessing intrinsic and common pathways
tissue factor, assessing extrinsic and common pathways.
3
Hemostasis is the entirety of mechanisms that allow extravasation
False
True
4
.... of platelets are located in the spleen
10%
40%
30%
20%
5
Primary hemostasis:
Involves contraction of the damaged vessel and adhesion
Takes place within several seconds.
The injured vessel wall releases tissue factor (TF)
This process takes several minutes.
6
Platelets are removed from the bloodstream by the reticuloendothelial system (spleen, liver, bone marrow).
False
True
7
What does bleeding time measure?
The speed of factor VIII activation in the coagulation cascade.
Time it takes for a standardized wound to stop bleeding
Assessing platelet function.
The time required for blood to clot in a test tube