2002 AIPMT Body Fluids and CirculationCoagulation of blood Easy Question 5 of 5 in Coagulation of blood

Continuous bleeding from an injured part of body is due to deficiency of ; -

A Vitamin A
B Vitamin B
C Vitamin K
D Vitamin E

The answer is C.

Solution

Vitamin K is needed by the liver for the synthesis of prothrombin and other clotting factors (VII, IX and X).
In its deficiency, these factors are not formed in sufficient amounts, so blood does not clot properly and bleeding from an injury continues for a long time.
Vitamin A deficiency causes night blindness, vitamin B deficiencies cause beri-beri and pellagra, and vitamin E deficiency affects fertility.
So continuous bleeding is due to deficiency of vitamin K.

Concept Vitamin K and clotting factors

Coagulation of blood in past papers

5 questions from this chapter have appeared across 5 exam years.