Mcq Subject: Pharmacology

Vasopressin antagonist acts on which pa of the nephron?

A. Proximal convoluted tubule

B. Distal convoluted tubule

C. Coical collecting tubule

D. Medullary collecting duct

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At low infusion rates of 3-5 mcg/kg/min, what action is produced by dopamine?

A. Vasoconstriction

B. Increased renal blood flow

C. Increased cardiac contractility

D. Decreased blood pressure

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All are used for postpaum hemorrhage except –

A. Misoprostol

B. Dinoprostone

C. Prostaglandin F2 alpha

D. Oxytocin

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What is the dose of adrenaline in anaphylactic shock?

A. 0.5 ml in 1:1000

B. 0.5 ml in 1:10000

C. 1 ml in 1:1000

D. 1.5 ml in 1:1000

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Which of the following is not true for rifabutin as compared to rifampicin?

A. Rifabutin has the longer half-life than rifampicin

B. Rifabutin has lesser incidence of drug-interactions

C. Rifabutin is more efficacious against MAC as compared to rifampicin

D. Rifabutin is more efficacious for pulmonary TB as compared to rifampicin

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A bank employee felt depressed with no interest in activities came to AIIMS OPD. He was staed on Escitalopram. Which of these adverse effects cannot be explained with escitalopram?

A. Vivid dreaming

B. Anorgasmia

C. Sialorrhea

D. Nausea

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Which of the following is caused by Amphotericin B

A. Hypo kalemia

B. Hyperkalemia

C. Hypermagnesemia

D. Hyponatremia

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Methacholine acts at which receptor?

A. M1

B. M2

C. M3

D. M4

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Antimalarial drug used for causal prophylaxis act at which stage of developmental cycle

A. Gametogony

B. Erythrocytic schizogony

C. Pre-erythrocytic schizogony

D. Exo-erythrocytic schizogony

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A patient on 300 mg of aspirin will show all the following except:

A. Irreversible inhibition of cyclooxygenase path way

B. Prolonged bleeding time

C. Inhibition of thromboxane TXA2

D. Inhibition of prostaglandin PGI2

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