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The haemorrhagic disease of new born is caused due to the deficiency of

1. vitamin A
2. vitamin B1
3. vitamin B12
4. vitamin K

Correct answer: vitamin K

Solution

Vitamin K is required for the synthesis of several clotting factors, so deficiency leads to impaired blood coagulation and bleeding in newborns. This is why hemorrhagic disease of the newborn is classically due to vitamin K deficiency.

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