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NEET MDS Quiz - Practice Test
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medicine - 3 Questions

1
Medicine
Calcification of cartilage occurs in
1. Ochronosis
2. Chondrocalcinosis
3. Hypervitaminosis D
4. Hypoparathyroidism

📝 Explanation:

1. Ochronosis (alkaptonuria)

Leads to bluish-black pigmentation of cartilage due to homogentisic acid deposition.

It causes degeneration but not calcification.

2. Chondrocalcinosis

Refers to calcification of cartilage, especially fibrocartilage and hyaline cartilage.

Commonly associated with deposition of calcium pyrophosphate dihydrate (CPPD) crystals.

Classic radiological finding: linear calcification in articular cartilage.

3. Hypervitaminosis D

Causes hypercalcemia and ectopic calcification in soft tissues, kidneys, vessels.

Not specifically cartilage calcification.

4. Hypoparathyroidism

Causes hypocalcemia, tetany, and sometimes basal ganglia calcification.

Cartilage calcification is not typical.

2
Medicine
The most common site of insulinoma is
1. Head
2. Body
3. Tail
4. Incidence same everywhere

📝 Explanation:

Insulinomas are neuroendocrine tumors of the pancreas. They can occur throughout the pancreas with equal frequency in the head, body, and tail.

3
Medicine
A 42-year-old patient with inferior wall acute MI developed shock and death. The cause is most likely to be
1. Right ventricular infarct
2. Myocardial rupture
3. Septal defect
4. Papillary muscle rupture

📝 Explanation:

An acute inferior wall myocardial infarction (MI) is most commonly caused by an occlusion of the right coronary artery, which supplies the inferior wall of the left ventricle and the right ventricle in most people. When the right ventricle is involved in the infarction, it can lead to right ventricular dysfunction, which severely impairs the heart's ability to pump blood to the lungs and subsequently to the rest of the body. This results in acute and progressive hemodynamic collapse and cardiogenic shock. Cardiogenic shock is the most common cause of death in patients with acute MI.

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