medical MCQs – Page 65

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 Review each marked answer and report any item that may be outdated or unclear.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

1281. Optic neuritis is a side effect of______________?
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A. Pyrazinamide

B. Rifampicin

C. INH

D. Ethambutol

1282. Which of the following is not an antimigraine agent ?
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A. Flunarizine

B. Zonisamide

C. Divalprox sodium

D. Propanolol

1283. Penicillin is effective against_____________?
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A. Neisseria gonorrhoeae

B. Neisseria meningitis

C. Treponema Pallidum

D. All of the above

1284. All of the following drugs are contraindicated in patients with G-6-PD deficiency, except____________?
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A. Nalidixic acid

B. Furazolidone

C. Cotrimoxazole

D. Ceftriaxone

1285. The group of antibiotics which possess additional anti-inflammatory and immunomodulatory activities is_____________?
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A. Fluoroquinolones

B. Polypeptide antibiotics

C. Tetracyclines

D. Macrolides

1286. Which anti tubercullar drug will cause transjent memory loss ?
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A. INH

B. Pyrazinamide

C. Ethambutol

D. Enthionamide

1287. Following inhibits Cytochrome P450_____________?
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A. Ranitidine

B. Cimetidine

C. Famotidine

D. All of the above

1288. Cephalosporines have all of the following interactions except_____________?
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A. Are used in upper respiratory tract infections

B. Are penicillinase resistant

C. Show cross sensitivity with penicillins

D. Have a broad spectrum but are inactive against anaerobes

1289. Mechanism of action of chlortetracycline_____________?
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A. Inhibition of cell wall formation

B. Inhibition of protein synthesis

C. Interfere with metabolism

D. Interfere with DNA function

1290. Mode of action of sulphonyl ureas includes all the following except______________?
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A. Inhibiting gluconeogenesis in liver

B. Enhancing insulin mediated post receptor enzyme reaction

C. Decreasing Glucose absorption from the qut

D. Activating receptors on beta cells of pancreas to release insulin

1291. Combination chemotherapy is used in tuberculosis in order to reduce____________?
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A. Side effects of drugs

B. Development of drug resistance

C. Dosage of drugs

D. Cost of therapy

1292. Which of the following is a characteristic of tetracycline stains ?
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A. Is always accompanied by hypolastic defects

B. Stained teeth fluoresce light yellow under U.V light

C. Stains are dark brown in color

D. There is less deposition in dentine as compared to enamel

1293. Which of the following is a peripherally acting muscle relaxant______________?
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A. Chlorozoxazone

B. Cortisopradol

C. Methocarbomol

D. Succinyl choline

1294. Which one is not converted to an active metabolite ?
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A. Fosinopril

B. Quinapril

C. Benzopril

D. Lisinopril

1295. Drug chemically related to penicillins is_____________?
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A. Cephalosporin

B. Sulphonamide

C. Tetracycline

D. Lincemycin

1296. Adrenaline is used in following EXCEPT______________?
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A. With xylocaine

B. Post extraction socket

C. Anaphylactin shock

D. Angina in dental chair

E. Both B & D

1297. Which of the following is not true about ACE inhibitors ?
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A. Used in asthma

B. Postural hypotension is seen

C. Na level decrease

D. Increase quality of life

1298. Succinylcholine is a/an______________?
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A. Short-acting narcotic

B. None of the above

C. Intravenous anaesthetic agent

D. Non-depolarizing muscle relaxant

1299. Among the drugs given below, which is LEAST likely to be implicated in drug induced hepatitis ?
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A. Pyrazinamide

B. Streptomycin

C. Isoniazid

D. Ripampicin

1300. IF a bacteria were susceptible to both penicillin and Erythromycin, then it would not be appropriate to treat the patients with both antibiotics at the same time because_______________?
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A. Erythromycin enhances the B-lactamases activity

B. Penicillin is only effective against growing cells

C. Penicillin is inactivated by erythromycin

D. Erythromycin exerts its effects extracellularly

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