MCQ - Vitamin K Deficiency

In vitamin K deficient patients, the Earliest finding is ? 

A. Prolongation of PT  
B. Prolongation of APTT 
C. Prolongation in Bleeding Time  
D. ↓↓ in Platelet Count
E. None of the above

Option "A" is the most appropriate answer

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╠ Harrison's Principles of Internal Medicine, 19/e, 738/p
╠ Essential Clinical Anesthesia, 10/chap, 67/p