medical MCQs – Page 58

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 Review each marked answer and report any item that may be outdated or unclear.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

1141. The drug Amifostine is used in subjects undergoing radiotherapy for cancer as it________________?
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A. Promotes damage of DNA

B. Prevents repair of damaged DNA

C. Enhances the production of free radicals

D. Scavanges free radicals

1142. Dermatologic manifestation of drug allergy are managed by_____________?
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A. Pirenzepine

B. Chlorpheniramine

C. Ranitidine

D. Lorazepam

1143. Drug not requiring dose adjustment in renal disease is___________?
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A. Calcium channel blocker

B. Vancomycin

C. Metronidazole

D. Aminoglycoside

1144. Adrenaline can be given in all of the following situations except_______________?
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A. Anaphylaxis

B. Myocardial infarction

C. Asthma

D. Shock

1145. Drugs like barbiturates precipitate symptoms of prophyria because______________?
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A. They depress ALA synthase

B. They inhibit heme oxygenase

C. They inhibit ALA synthase

D. They induce heme oxygenase

1146. 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. Pirenzipine

C. Misoprostol

D. Roxatidine

1147. Aspirin is contraindicated in_______________?
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A. Angina

B. Peptic ulcer

C. MI

D. Hypertension

1148. A biological experiment in which one compares the effects of two preparations by means of common biological response is known a_____________?
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A. Bio-experiment

B. Bio-assay

C. Bio-statement

D. Biodegradable

1149. A patient on 300 mg of aspirin will show all the following except________________?
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A. Prolonged bleeding time

B. Inhibition of thromboxane TXA2

C. Inhibition of prostaglandin PGI2

D. Irreversible inhibition of cyclooxygenase path way

1150. Acute Barbiturate poisoning results in_______________?
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A. Liver failure

B. Respiratory failure

C. Convulsions

D. Renal failure

1151. Serum sickness is caused by all the following drugs except_____________?
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A. Chloroquin

B. Pencillins

C. Sulfonamides

D. Aspirin

1152. The vulnerable period of pregnancy for the causation of foetal malformation is_____________?
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A. 1 18 days

B. II trimester

C. 19 55 days

D. 56 85 days

1153. Drug which causes gingival hyperplasia_____________?
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A. Nifedipine

B. Erythromycin

C. Cyclosporin

D. Aspirin

E. Both A & C

1154. All of the following are inhalational anesthetic agents except_____________?
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A. Enflurane

B. Halothane

C. Isoflurane

D. Ketamine

1155. Lidocaine produces its antiarrhythmic effects by_____________?
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A. Decreasing cardiac excitability

B. Increasing cardiac conduction velocity

C. Increasing spontaneous pacemaker activity

D. Increasing A-V conduction

1156. Elimination after 4 half lives in first order kinetics is____________?
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A. 84%

B. 80.50%

C. 4.75%

D. 93%

1157. Relative contraindications for the administration of Ketamine hydrochioride include all of the following EXCEPT ?
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A. History of epilepsy

B. Raised intracranial tension

C. Recent anterior myocardial infarction

D. Age < 5 years

1158. What is the advantage of sublingual route of administration of drugs_____________?
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A. Can be spitted out with signs of toxicity

B. prevents or bypasses first pass effects

C. Easy to administer

D. Lipid soluble

1159. Secretory immunoglobulin is_____________?
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A. IgE

B. IgA

C. IgG

D. IgM

1160. All of the following drugs cause dryness of mouth except_______________?
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A. Neostigmine

B. Atropine

C. Imipramine

D. Chlorpheniramine

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