Medical MCQs

5099 MCQs  (Page 433 of 510)

All are true about nitric oxide, EXCEPT____________?
A. Regulates vasomotor tone
B. Acts via camp
C. Present in cigarette smoke
D. It is important in penile erection
Mode of action of sulphonyl ureas includes all the following except______________?
A. Activating receptors on beta cells of pancreas to release insulin
B. Inhibiting gluconeogenesis in liver
C. Enhancing insulin mediated post receptor enzyme reaction
D. Decreasing glucose absorption from the qut
Which is NOT a 2nd generation antihistaminic ?
A. Loratidine
B. Acrivastatine
C. Cyclizine
D. Terfenidine
An oral hypoglycemic agent is______________?
A. Warfarin
B. Insultin
C. Glibeneclamide
D. Gluengon
Role of Heparin_____________?
A. Prevents synthesis of prothrombin
B. Prevents synthesis of fibrinogen
C. Prevents conversion of fibrinogen to fibrin
D. Prevents prothrombin conversion to thrombin
Which one of the following can be blocked by atropine ?
A. Decreased blood pleasure caused by hexamethonium
B. Increased blood pressure caused by nicotine
C. Tachycardia caused by exercise
D. Tachycardia caused by infusion of acetylcholine
Atropine is used in______________?
A. Organophosphate posioning
B. Chronic glaucoma
C. Syncope
D. Trigeminal neuralgia