Which is most likely to be increased in Vit K deficiency:
Correct Answer: P.T.
Description: Answer is B (P.T.): Although PT and PTT both will he affected PT is the single best answer as explained below. Therefore both intrinsic & extrinsic mechanisms of the coagulation cascade are affected. (Refer previous questions) PT & PTT both will be prolonged. However, factor VII has sho t1/2 & so PT is the first to be prolonged (even in mild vit. K deficiency) Later, factors II, IX & X will also fall, causing PTT to be prolonged. PT is thus the better choice out of PT and PTT
Category:
Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now