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NEET MDS Quiz - Practice Test
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General Medicine - 3 Questions

1
General Medicine

What is the primary function of intrinsic factor in the absorption of vitamin B12?
1) Facilitating its release from food in the stomach
2) Enhancing intestinal absorption of free vitamin B12
3) Catalyzing the conversion of dietary vitamin B12 to its active form
4) Binding to vitamin B12 for its transport in the bloodstream

📝 Explanation:

Intrinsic factor is a glycoprotein produced by parietal cells in the stomach. It binds to vitamin B12 in the stomach and facilitates its absorption in the ileum.

2
General Medicine

In the synthesis of which protein is vitamin K an essential cofactor?
1) Factor II
2) Factor V
3) Factor VIII
4) Factor X

📝 Explanation:

Vitamin K is a crucial cofactor in the carboxylation of glutamate residues in the synthesis of prothrombin (factor II), which is essential for its activity. Vitamin K deficiency can lead to decreased levels of factor II, resulting in a bleeding tendency known as hypoprothrombinemia.

3
General Medicine

What is the primary treatment for Hirschsprung disease?
1) Antibiotics
2) Enemas
3) Surgical resection and anastomosis
4) Medication to stimulate intestinal motility

📝 Explanation:

The treatment for Hirschsprung disease involves surgically removing the aganglionic segment of the colon and joining the normal colon to the rectum. This effectively restores the normal flow of intestinal contents and resolves the functional obstruction caused by the lack of coordinated peristaltic contractions.

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