medical MCQs – Page 458

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

9141. Which one of the following is Not true of angiotensin converting enzyme (ACE) inhibitor____________?
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A. Contraindicated in diabetic nephropathy

B. May cause hyperkalaemia in diabetic patients

C. NSAIDs may impair its hypotensive effect

D. Contraindicated in pregnancy

9142. ovidone iodine is the choice of mouthrinse in cases associated AIDS because______________?
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A. It is a topical anesthestic

B. All of the above

C. Its ability to aid in blood coagulation

D. It is a topical antimicrobial

9143. Which of the following drug is used to counter act the gastric irritation produced by administration of NSAID_______________?
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A. Betaxolol

B. Misoprostol

C. Pirenzipine

D. Roxatidine

9144. Acute Barbiturate poisoning results in_______________?
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A. Liver failure

B. Respiratory failure

C. Renal failure

D. Convulsions

9145. Omeprazole is a_____________?
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A. Antihistamine

B. Ulcer protective

C. Proton pump inhibitor

D. Ulcer healing drug

9146. The drug which has an affinity for a receptor site and produces the intrinsic activity of the receptor cell or enzyme system is known as____________?
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A. A non competitive antagonist

B. An agonist

C. A competitive antagonist

D. A physiologic antagonist

9147. Drug binds to activate the receptor is same fashion, which directly or indirectly brings effect, is_____________?
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A. Antagonist

B. Agonist

C. Partial agonist

D. Inverse agonist

9148. A child has phocomelia, this impliments his mother had taken which of the following medication during pregnancy______________?
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A. Chloroquine

B. Thalidomide

C. Tetracycline

D. Warfarin

9149. Following inhibits Cytochrome P450_____________?
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A. Ranitidine

B. Famotidine

C. Cimetidine

D. All of the above

9150. Therapeutic uses of calcium salts include the following except_________________?
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A. Disorders of coagulation

B. Osteoporosis

C. Extreme hyper-Kalemia

D. Laryngospasm

9151. Nitrous oxide is______________?
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A. A good analgesic and a good anesthetic

B. A good analgesic but a poor anesthetic

C. A good anesthetic but a poor analgesic

D. A poor analgesic and a poor anesthetic

9152. The most common cause of antibiotic related diarrhea is____________?
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A. C.difficile

B. K.pneumoniae

C. Shigella

D. H.pylori

9153. Zero order kinetics is seen with_______________?
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A. Phenytoin

B. Erythromycin

C. Phenabarbtion

D. Digoxin

9154. Serum sickness is caused by all the following drugs except_____________?
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A. Sulfonamides

B. Chloroquin

C. Aspirin

D. Pencillins

9155. The first choice of drug for patitmal seizure is________________?
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A. Phenobarbitone

B. Phentoin sodium

C. None of the above

D. Carbamazepine

9156. Local anaesthetics act by inhibiting_____________?
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A. Only sensory fibres

B. Motor fibers only

C. Motor and sensory fibres

D. None of the above

9157. All the following increases drug metabolism by activating cytochrome enzyme, EXCEPT___________?
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A. Phenobarbitone

B. Tetracycline

C. Cimetidine

D. Rifampicin

9158. After I.V administration of which of the following anesthetic agent, there is rapid recovery and less headedness ?
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A. Droperidol

B. Midazolam

C. Propofol

D. Diazepam

9159. Which of the following drugs cannot reduce the salivary secretions ?
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A. Amitriptyline

B. Disopyrmide

C. Atenolol

D. Neostigmine

9160. The following statements about verapamil are true except_____________?
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A. It does not produce reflex tachycardia

B. It is contraindicated in patients with supraventicular tachycardia

C. It is less potent as a coronary vasodilator

D. It can cause constipation

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