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NEET MDS Quiz - Practice Test
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medicine - 3 Questions

1
Medicine
Anion gap is not increased in
1. Acute Renal Failure
2. Lactic acidosis
3. Ketoacidosis
4. Diarrhea

📝 Explanation:

Diarrhea causes a loss of bicarbonate HCO3-, which leads to a normal anion gap metabolic acidosis.

The body compensates for the loss of the negative bicarbonate ions by retaining chloride ions Cl- to maintain electrical neutrality, resulting in hyperchloremic acidosis. Therefore, the anion gap, remains within the normal range.

2
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.

3
Medicine
The investigation of choice for a solitary pulmonary nodule is
1. CT
2. MRI
3. X-ray chest
4. FNAC guided by imaging

📝 Explanation:

A solitary pulmonary nodule (SPN) is a single, small, well-defined lesion in the lung. The investigation of choice for evaluating an SPN is a computed tomography (CT) scan.

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