AUTONOMIC NERVOUS SYSTEM MCQS-5

1.	adrenaline is inactive orally because it is: a. not absorbed from the gastrointestinal tract b. destroyed by gastric acid c. completely metabolized in the intestinal mucosa and liver before reaching systemic circulation d. taken up by adrenergic nerve endings of the intestinal wall, liver and lungs	c
2.	noradrenaline is administered by: a. subcutaneous injection             b. intramuscular injection c. slow intravenous infusion        d. all of the above routes	c
3.	which pressor agent acts directly as well as indirectly and produces both vasoconstriction and cardiac stimulation: a. phenylephrine     b. methoxamine       c. noradrenaline    d. mephentermine	d
4.	action of adrenaline a.release rennin from kidney by acting on b1 receptor b.cause bronchodilation by acting on b2 receptor c.help in ejaculation by acting on a1 receptor d.cause cardiac stimulation by acting on b1 receptor e all of these	e
5.	select the receptor present on kidney a.b1          b.b2              c.b3               d.all of these	a
6.	select the receptor present on adipose tissue a.b1              b.b2               c.b3                  d.all of these	c
7.	which of the following is a selective a1 receptor antagonoist a.rauwolscine              b.prazosin              c.yohimbine         d.all of these	b
8.	while undergoing a surgical procedure a patient develops hypotension. which drug can be injected intramuscularly to raise his bp: a. noradrenaline         b. isoprenaline      c. mephentermine      d. isoxsuprine	c
9.	which of the following drugs has been used both as orally active nasal decongestant as well as appetite suppressant, and has been implicated in precipitating haemorrhagic stroke: a. dexfenfluramine     b. phenylpropanolamine          c. isoxsuprine d. oxymetazoline	b
10.	the following is true of fenfluramine except: a. it lacks cns stimulant action b. its use has been associated with cardiac abnormalities and pulmonary hypertension c. it causes weight loss independent of reducedfood intake d. it enhances serotonergic transmission in the brain	c
11.	choose the correct statement about sibutramine: a. it is an anorectic drug used to assist weight reduction b. it is an  antidepressant c. it is a 5-ht and na reuptake inhibitor                     d. both b and c	a
12.	adrenaline injected with a local anaesthetic: a. reduces local toxicity of the local anaesthetic b. reduces systemic toxicity of the local anaesthetic c. shortens duration of local anaesthesia     d. makes the injection less painful	b
13.	the most likely complication of prolonged use of nasal decongestant drops is: a. atrophic rhinitis                                 b. hypertrophy of nasal mucosa c. naso-pharyngeal moniliasis               d. blockage of eustachian tubes	a
14.	the drug which produces vasoconstriction despite being an  a adrenergic blocker is: a. phenoxybenzamine     b. ergotamine                c. dihydroergotoxine d. tolazoline	c
15.	dopamine act on following receptor except a.d1              b.a                      c.b1                             d.b2	d
16.	dobutamine is a derivative of dopamine,it is a agonist for a.d1,d2                 b.a,b               c.both of these                  d.none of these	b
17.	which of the following is resistant to mono amine oxidase a.adrenaline            b.ephedrine         c.both of these         d.none of these	b
18.	select the synthetic a.ephedrine            b.amphetamine         c.both of these          d.none of these	b
19.	which of the following is include in dope test a.amphetamine               b.nandrolone         c.oxymetholone       d.all of these	d
20.	which of the following is used as nasal decongestant a.naphazoline         b.imidazoline compound                 c.both a and b d.none of these	c