Prothrombin time indicates the integrity of ____________________?
Correct answer: B. Extrinsic pathway
- A. Intrinsic pathway
- B. Extrinsic pathway
- C. Capillary function
- D. All of the above
Explanation
Prothrombin time evaluates the extrinsic and common coagulation pathways, particularly factor VII along with factors X, V, II, and fibrinogen. It is therefore used to monitor warfarin therapy.
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