Vit-K deficiency is indicated by___________?
Correct answer: B. Increased prothrombin time
- A. Low platelet count
- B. Increased prothrombin time
- C. Decreased prothrombin time
- D. None of the above
Explanation
Vitamin K is needed to produce functional clotting factors, so deficiency prolongs the prothrombin time. Platelet count is generally unaffected because platelets are involved in primary rather than factor-mediated coagulation.
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