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General Medicine NEET MDS Practice Test
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General Medicine - 3 Questions

1
General Medicine
Most of the deaths after a myocardial infarction are seen within the first
1) 1 hr
2) 6 hr
3) 12 hr
4) 24 hr

📝 Explanation:

Most deaths after myocardial infarction occur within the first 1 hour. This is primarily due to ventricular fibrillation and other lethal arrhythmias. The mortality rate is highest in the immediate post-MI period, emphasizing the importance of rapid medical intervention.

2
General Medicine

What is the primary hormone responsible for the regulation of calcium homeostasis?
1) Parathyroid hormone (PTH)
2) Calcitonin
3) Vitamin D
4) Thyrocalcitonin

📝 Explanation:

Parathyroid hormone (PTH) is the primary hormone that regulates calcium homeostasis in the body. It is secreted by the parathyroid glands and acts on the kidneys, bones, and intestines to maintain serum calcium levels within a narrow range. While vitamin D and calcitonin also play roles in calcium metabolism, PTH is the major player in this regulatory process.

3
General Medicine

What is the primary mechanism by which proteinuria occurs in minimal-change disease?
1) Increased glomerular permeability due to alterations in the glomerular basement membrane
2) Immune complex deposition in the glomeruli
3) Alteration in the podocyte slit diaphragm
4) Reduced synthesis of plasma proteins

📝 Explanation:

In minimal-change disease, the primary mechanism of proteinuria is thought to be increased permeability of the glomerular capillary wall to proteins due to changes in the glomerular basement membrane, rather than structural damage to the membrane itself.

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