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NEET MDS Quiz - Practice Test
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Practice Test

Oral Medicine - 3 Questions

1
Oral Medicine

In the context of antitubercular therapy, which of the following is true about the metabolism of isoniazid and streptomycin?
(1) Both are metabolized in the liver
(2) Both are metabolized in the kidneys
(3) Isoniazid is metabolized in the liver, while streptomycin is metabolized in the kidneys
(4) Isoniazid is metabolized in the kidneys, while streptomycin is metabolized in the liver

📝 Explanation:

Isoniazid is metabolized by the liver, while streptomycin is metabolized by the kidneys. This is important to consider when administering these drugs, especially in patients with hepatic or renal impairment.

2
Oral Medicine

Which of the following is a potential complication of chronic glucocorticoid therapy?
(1) Hypocalcemia
(2) Hypercalcemia
(3) Hyponatremia
(4) Hypokalemia

📝 Explanation:

Chronic glucocorticoid therapy can lead to a condition known as Cushing's syndrome, which includes various endocrine and metabolic disturbances. One of the common complications is hypercalcemia due to increased bone resorption and impaired calcium excretion in the kidneys. Additionally, glucocorticoids can cause a mild increase in serum phosphorus levels, leading to hyperphosphatemia in some cases.

3
Oral Medicine

In a patient with suspected hyperparathyroidism, which of the following is the most sensitive diagnostic test for the disease?
(1) Serum calcium
(2) Serum intact parathyroid hormone (iPTH)
(3) Urinary calcium-to-creatinine ratio
(4) Serum phosphorus

📝 Explanation:

The most sensitive diagnostic test for hyperparathyroidism is the measurement of serum intact parathyroid hormone (iPTH) levels. Elevated iPTH levels in the context of hypercalcemia are indicative of primary hyperparathyroidism. However, serum calcium levels are also typically high in this condition and are commonly measured in the initial workup.

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