Pharmacology - Mock Test 39

Question 381

Select the drug which is administered orally for erectile dysfunction in men

A) Yohimbine B) Papaverine C) Alprostadil D) Sildenafil

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Question 382

Sildenafil is contraindicated in patients taking the following class of drugs

A) α-adrenergic blockers B) β-adrenergic blockers C) Organic nitrates D) Angiotensin converting enzyme inhibitors

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Question 383

Low doses of adrenaline dilate the following vascular bed

A) Cutaneous B) Mucosal C) Renal D) Skeletal muscle

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Question 384

The following action of adrenaline is <u>not</u> mediated by <u>β</u> receptors

A) Dilatation of blood vessels B) Dilatation of pupil C) Bronchodilation D) Renin release from kidney

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Question 385

The following action of adrenaline is mediated by both α and β receptors producing the same directional effect

A) Cardiac stimulation B) Intestinal relaxation C) Dilatation of pupil D) Bronchodilatation

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Question 386

A sympathomimetic amine that acts almost exclusively by releasing noradrenaline from the nerve endings is

A) Ephedrine B) Dopamine C) Isoprenaline D) Tyramine

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Question 387

The principal process which terminates the action of noradrenaline released from adrenergic nerve ending is

A) Degradation by MAO B) Methylation by COMT C) Axonal uptake D) Extraneuronal uptake

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Question 388

The following type/types of noradrenaline uptake is blocked by reserpine

A) Axonal uptake B) Granular uptake C) Extraneuronal uptake D) All of the above

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Question 389

Select the drug which can improve urinary flow rate inbenign prostatic hypertrophy without affecting prostate size

A) Amphetamine B) Prazosin C) Finasteride D) Goserelin

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Question 390

The most efficacious inhibitor of catecholamine synthesis in the body is

A) α-methyl-p-tyrosine B) α-methyldopa C) α-methyl-norepinephrine D) Entacapone

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