Deficiency of which of the following vitamins causes excessive bleeding from wounds?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Vitamin K
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Deficiency of Vitamin K causes excessive bleeding from wounds.
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Vitamin K is necessary for the synthesis of the proteins that help control bleeding (clotting factors) and thus for the normal clotting of blood.
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It is also needed for healthy bones and other tissues.
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Vitamin K deficiency can cause hemorrhagic disease of the newborn, characterized by a tendency to bleed.
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A vitamin K injection is usually given to newborns to protect them from this disease.
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In healthy adults, vitamin K deficiency is uncommon because many green vegetables contain vitamin K and bacteria in the intestine produce vitamin K.