Important mcqs of pharmacology (16-30)

These are very important mcqs of pharmacist competitive exams   

 16.The sensitivity of renal tubules to ADH is increased by

A. Chlorpropamide

B. Triampterine

C. Frusemide

D. Acetazolamide

Ans. D

17.Glucocorticoids can produces which of the following effects

A. Elevate the sodium iron level

B. Deposition of fat in the liver

C. Peculiar alteration in carbohydrate distribution

D. Decrease the absorption of calcium from the intestine

Ans. D

18.Carbonic anhydrase inhibitor are

A. Isoquinoline derivatives

B. Fluroquinolones

C. Sulfonamide derivatives

D.Aminoglycoside derivatives

Ans. D

19.In the treatment of Angina the drug applied to the skin for absorption

A. Amyl nitrate

B. Glyceryl trinitrate

C. Isosorbide dinitrate

D. Pentaerythritol tetranitrate

Ans.D

20.The antimicrobial activity of penicillin due to

A. Thiazolidine ring

B. Betalactum ring

C. 6-APA

D. None of these

Ans. C

21.The following drugs interfere with the synthesis of cell wall except

A. Bacitracin

B. Cycloserine

C. Vancomycin

D. Colistin

Ans. D

22.For the patient with hepatic coma, the choice of antibiotics is

A. Meperidine

B. Prnicillin-G

C. Neomycin

D. Erythromycin

Ans. C

23.Captopril exerts action by inhibiting conversion of

A. Angiotension I to II

B. Angiotension II to I

C. Angiotensiogen to angiotensin

D. Analgesia to angiotensin

Ans. A

24.Identify one of the cancer chemotheraputic agent which is an antimetabolite 

A. Flurouracil

B. Nitrogen mustard

C. Cyclophosphamide

D. Chlorambucil

Ans. A 

25.The drug contraindicated in the treatment of parkinsonism

A. Pyridoxine

B.Alpha methyldopa

C. Carbidopa

D. Dopamine 

Ans. B

26.Toxic effect of L-dopa can be reversed by administered of

A. Folic acid

B. Tocopherols

C. Pyridoxine

D. Thaimine

Ans. C

27.Which of the following adverse effect is characteristic of Ampicillin

A. Maculopapular rash

B. Spondylitis

C. Nephritis

D. Stomatitis

Ans. A

28.All of the following statements concerning sulfonamides are correct except

A. Inhibit dihydrofolate reductase

B. Crystaluria may occur

C. They are Antimetabolites of PABA

D. They are bacteriostatic

Ans. A

29.Effect of curare are potentiated by following anaesthetic

A. Enflurane

B. Diethyl ether

C. Halothane

D. Propanediol

Ans. B

30.Tetracyclines are avoided during pregnancy because

A. It is teratogenic

B. It may affect the bone growth of foetus

C. It causes discolouration of mothers teeth

D. It may cause abortion

Ans. B