Vitamin K and Blood Coagulation — MCQs

Carboxylation of clotting factors by vitamin K is required for them to be biologically active. Which amino acid is carboxylated?

Vitamin K leads to?

A 78 year old man who lives alone and prepares his own food is found to have ecchymotic patches over posterior aspect of his lower extremities. He has haemorrhagic areas around hair follicles, hair are fragmented and splinter haemorrhages are present in nail beds and several hematomas are present in the muscles of arms and legs. PT and CT are normal. This clinical syndrome is most likely due to

Vitamin K supplementation is given to neonates to prevent _____ .

All of the following are true about Vitamin K EXCEPT:

What is the daily requirement of vitamin K?

Vitamin K is required for:

A young patient started to take a weight loss medication that acts by inhibiting fat absorption from food. After a few weeks, she developed easy bruising and increased menstrual bleeding. Deficiency of which of the following vitamins is responsible for her condition?

A patient is found to have elevated levels of methylmalonic acid. This finding suggests a deficiency in which vitamin?

Vitamin B12 is found maximum in: