MCQs-Gastrointestinal Drugs part 2 I Pharmacology KD Tripathi mcqs part 45



>>>Part 3

45.1 The most dependable emetic used to expel ingested poisons is:

A. Intramuscular emetine

B. Oral syrup ipecacuanha

C. Intramuscular apomorphine

D. Oral bromocriptine


45.2 In a conscious patient of poisoning, use of an emetic

is permissible in case the ingested poison is:

A. Ferrous sulfate

B. Sodium hydroxide

C. Kerosine

D. Morphine


45.3 The most effective antimotion sickness drug suitable for short brisk journies is:

A. Promethazine theoclate

B. Cinnarizine

C. Prochlorperazine

D. Hyoscine


45.4 In case of hill journey, antimotion sickness drugs are best administered at:

A. Twelve hours before commencing journey

B. One hour before commencing journey

C. Immediately after commencing journey

D. At the first feeling of motion sickness


45.5 Chlorpromazine and its congeners suppress vomiting

of following etiologies except:

A. Motion sickness

B. Radiation sickness

C. Postanaesthetic

D. Uremic


45.6 Choose the phenothiazine compound which has selective

labyrinthine suppressant action, is used for

vomiting and vertigo, but not in schizophrenia:

A. Triflupromazine

B. Prochlorperazine

C. Trifluoperazine

D. Thioridazine


45.7 Metoclopramide has the following actions except:

A. Increases lower esophageal sphincter tone

B. Increases tone of pyloric sphincter

C. Increases gastric peristalsis

D. Increases intestinal peristalsis


45.8 Metoclopramide blocks apomorphine induced vomiting,

produces muscle dystonias and increases prolactin

release indicates that it has:

A. Anticholinergic action

B. Antihistaminic action

C. Anti 5-HT3 action

D. Antidopaminergic action


45.9 Activation of the following type of receptors present

on myenteric neurones by metoclopramide is primarily

responsible for enhanced acetylcholine release

improving gastric motility:

A. Muscarinic M1

B. Serotonergic 5-HT3

C. Serotonergic 5-HT4

D. Dopaminergic D2


45.10 Select the prokinetic-antiemetic drug which at relatively

higher doses blocks both dopamine D2 as well

as 5-HT3 receptors and enhances acetylcholine

release from myenteric neurones:

A. Cisapride

B. Prochlorperazine

C. Metoclopramide

D. Domperidone


45.11 Which prokinetic drug(s) produce(s) extrapyramidal side effects:

A. Metoclopramide

B. Cisapride

C. Domperidone

D. All of the above


45.12 The progastrokinetic action of the following drug(s) is attenuated by atropine:

A. Domperidone

B. Metoclopramide

C. Cisapride

D. Both ‘B’ and ‘C’


45.13 A patient returning from dinner party meets with road

accident and has to be urgently operated upon under

general anaesthesia. Which drug can be injected

intramuscularly to hasten his gastric emptying:

A. Methylpolysiloxane

B. Promethazine

C. Metoclopramide

D. Apomorphine


45.14 Select the correct statement regarding the antiemetic

efficacy of the three prokinetic drugs metoclopramide,

domperidone and cisapride:

A. Cisapride is the most effective

B. Metoclopramide is the most effective

C. Domperidone is the most effective

D. All three are equally efficacious

 

45.15 Which antiemetic selectively blocks levodopa induced

vomiting without blocking its antiparkinsonian action:

A. Metoclopramide

B. Cisapride

C. Domperidone

D. Ondansetron


45.16 The following prokinetic drug has been implicated in

causing serious ventricular arrhythmias, particularly

in patients concurrently receiving erythromycin or

ketoconazole:

A. Domperidone

B. Cisapride

C. Mosapride

D. Metoclopramide


45.17 Indicate the drug which does not improve lower

esophageal sphincter tone or prevent gastroesophageal

reflux, but is used as first line treatment of

gastroesophageal reflux disease:

A. Sodium alginate + aluminium hydroxide gel

B. Omeprazole

C. Mosapride

D. Famotidine


45.18 Select the drug(s) which afford(s) relief in gastroesophageal

reflux by increasing lower esophageal

sphincter tone and promoting gastric emptying, but

without affecting acidity of gastric contents:

A. Sodium alginate

B. Metoclopramide

C. Cisapride

D. Both ‘B’ and ‘C’ 


45.19 The fastest symptomatic relief as well as highest

healing rates in reflux esophagitis are obtained with:

A. Prokinetic drugs

B. H2 receptor blockers

C. Proton pump inhibitors

D. Sodium alginate


45.20 Prokinetic drugs serve the following purpose(s) in

gastroesophageal reflux disease:

A. Reduce reflux of gastric contents into esophagus

B. Promote healing of esophagitis

C. Reduce acidity of gastric contents

D. Both ‘A’ and ‘B’ are correct 


45.21 Cisapride enhances gastrointestinal motility by:

A. Activating serotonin 5-HT4 receptor

B. Activating muscarinic M3 receptor

C. Blocking dopamine D2 receptor

D. All of the above


45.22 The most effective antiemetic for controlling cisplatin

induced vomiting is:

A. Prochlorperazine

B. Ondansetron

C. Metoclopramide

D. Promethazine


45.23 Select the antiemetic that prevents activation of

emetogenic afferents in the gut and their central relay

in chemoreceptor trigger zone/nucleus tractus

solitarious, but has no effect on gastric motility:

A. Ondansetron

B. Domperidone

C. Metoclopramide

D. Cisapride


45.24 Granisetron is a:

A. Second generation antihistaminic

B. Drug for peptic ulcer

C. Antiemetic for cancer chemotherapy

D. New antiarrhythmic drug


45.25 Ondansetron is effective in the following type(s) of vomiting:

A. Cisplatin induced

B. Radiotherapy induced

C. Postoperative

D. All of the above


45.26 Ondansetron blocks emetogenic impulses at the following site(s):

A. Vagal afferents in intestines

B. Nucleus tractus solitarius

C. Chemoreceptor trigger zone

D. All of the above


45.27 Choose the correct statement about ondansetron:

A. It is a dopamine D2 receptor antagonist

B. It suppresses postoperative nausea and vomiting

C. It is the most effective antiemetic for motion sickness

D. It is not effective by oral route


45.28 Cancer chemotherapy induced vomiting that is not

controlled by metoclopramide alone can be suppressed

by combining it with:

A. Amphetamine

B. Dexamethasone

C. Hyoscine

D. Cyclizine


45.29 Prolonged treatment with the following drug can

promote dissolution of gallstones if the gall bladder is functional:

A. Ursodeoxycholic acid

B. Sodium taurocholate

C. Sodium glycocholate

D. Cholecystokinin



Ans:

45.1 C 45.2 A 45.3D 45.4 B 45.5 A 45.6 B 45.7 B 45.8D 45.9 C 45.10 C 45.11 A 45.12D 45.13 C 45.14 B 45.15 C 45.16 B 45.17 B 45.18D 45.19 C 45.20 A 45.21 A 45.22 B 45.23 A 45.24 C 45.25D 45.26D 45.27 B 45.28 B 45.29 A

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