Vitamin K is essential for the synthesis of prothrombin, which is a clotting factor. Without vitamin K, the body is unable to produce enough prothrombin, leading to an increased risk of bleeding. Vitamin K-dependent clotting factors also play a role in the coagulation cascade, which is necessary to prevent excessive bleeding after injury.

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Vitamin K

Question 46

Multiple Choice

Vitamin K

A) is essential for the synthesis of prothrombin.
B) is used to make hemoglobin.
C) requires intrinsic factor to be absorbed.
D) is a clotting factor.

Correct Answer: