AUTONOMIC NERVOUS SYSTEM MCQS-6

1.	isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in buerger’s disease, because in this disease: a. vasodilator beta adrenoceptors are deficient b. there is loss of sympathetic innervation c. blood flow to the affected limb is reduced by organic obstruction d. the drug is not delivered to the affected site	c
2.	dexamphetamine produces an apparently paradoxical effect in: a. addicts         b. athletes     c. parkinsonian patients  d. hyperkinetic children	d
3.	which is false statement a.amphetamine is used in nocturnal enuresis in children b.sibutramine a(anorectic ) can help the obese to tolerate a reducing diet for short period c.phenylephrine cause mydriasis with cycloplegia d.all of these	c
4.	newer approach developed for control of obesity are a.orlistat           b.narcolepsy         c.both                     d.uterine relaxant	a
5.	phentolamine test is considered positive for pheochromocytoma if there is a: a. rise in bp by more than 35 mm hg systolic and 25 mm hg diastolic b. rise in systolic but fall in diastolic bp c. fall in both systolic and diastolic bp by less than 20 mm hg d. fall in bp by more than 35 mm hg systolic and more than 25 mm hg diastolic	d
6.	select the drug which affords faster and greater symptomatic relief in benign hypertrophy of prostate: a. terazosin         b. desmopressin           c. finasteride           d. sildenafil	a
7.	select the drug which can improve urinary flow rate in benign prostatic hypertrophy without affecting prostate size: a. amphetamine        b. prazosin       .c finasteride      d. goserelin	b
8.	sildenafil is contraindicated in patients taking the following class of drugs: a. a-adrenergic blockers            b. b-adrenergic blockers c. organic nitrates                      d. angiotensin converting enzyme inhibitors	c
9.	what is true of sildenafil: a. it enhances sexual enjoyment in normal men b. it delays ejaculation c. it improves penile tumescence in men with erectile dysfunction d. it blocks cavernosal a2 adrenoceptors	c
10.	propranolol does not block the following action of adrenaline: a. bronchodilatation      b. lipolysis    c. muscle tremor      d. mydriasis	d
11.	the following disease is worsened by propranolol: a. glaucoma     b. raynaud’s disease   c. benign prostatic hypertrophy d. parkinsonism	b
12.	in hyperthyroidism, beta adrenergic blockers are used: a. to induce euthyroid state                b. as definitive therapy c. for rapid control of certain symptoms while awaiting response to carbimazole d. to reduce basal metabolic rate	c
13.	which of the following is cardioselective(b1) a.labetalol               b.pindolol           c.metoprolol          d.all of these	c
14.	which beta blocker have alpha blocking activity also a.labetalol       b.carvedolol               c.both         d.acebutolol	c
15.	select the non selective beta blocking drug a.propranolol b.betaxolol c.esmolol d.all of these	a
16.	which beta blocker drug is  highly lipid soluble a.propranolol b. labetalol c.acebutolol d.sotalol	a
17.	which beta blocker drug is lipid insoluble a.atenolol b.sotalol c.both of these d propranolol	c
18.	which of the following may precipitate an attack of open-angle glaucoma if instilled into the eye? a. physostigmine. b. atropine. c. pilocarpine. d. echothiophate	b
19.	drug used in open angle glaucoma a.topical beta blocker b.pgf2a(prostaglandin analogues) c.alpha adrenergic agonist d.all of these	d
20.  7	drug used in angle closure glaucoma are i.acetazolamide ii.topical beta blocker iii.apraclonidine iv.acetazolamide correc statement a.i,ii,iii,iv b.i,ii c.iii,iv d.i,iv	a