Mcq Subject: Pharmacology
Major mechanism of action of nitrates in acute attack of angina is:
A. Coronary vasodilation
B. Decrease in preload
C. Decrease in afterload
D. Decrease in hea rate
View DescriptionMost commonly used route of administration of heparin for post-operative thromboprophylaxis is?
A. Subcutaneous
B. Intravenous
C. Inhalational
D. Intramuscular
View DescriptionLike all opioids, tramadol acts as an analgesic drug by stimulating mu opioid receptors. Apa from this, the additional mechanism of action of tramadol is?
A. Serotonin and nor-adrenaline reuptake inhibition
B. Anticholinergic
C. Antihistaminic
D. Serotonin and dopamine reuptake inhibition
View DescriptionA patient is of warfarin therapy. All of the following drugs increase the risk of bleeding with warfarin except?
A. Isoniazid
B. Amiodarone
C. Carbamazepine
D. Cimetidine
View DescriptionA patient of septic shock was given intravenous norepinephrine. The response to this drug is best checked by:
A. Increase in hea rate
B. Decrease in hea rate
C. Increase in mean aerial pressure
D. Decreased renal perfusion and reduced urine output
View DescriptionLidocaine produces its antiarrhythmic effects by
A. Increasing A-V conduction
B. Decreasing cardiac excitability
C. Increasing cardiac conduction velocity
D. Increasing spontaneous pacemaker activity
View DescriptionAll are true of midazolam over diazepam except
A. 2 to 3 times more potent than diazepam
B. It has low water solubility and shows minimal risk for thrombophlebitis
C. Has more affinity for benzodiazepine receptors
D. Better anxiolysis and amnesia
View DescriptionNot true about piperacilline is:
A. Active against pseudomonas aeruginosa
B. Inhibits Beta-lactamase
C. It is a ureido penicillin
D. Given parenterally
View DescriptionWhich of the following anticholinergic agent does not cross the blood brain barrier?
A. Glycopyrrolate
B. Atropine
C. Hyoscine butylbromide
D. Hyoscine hydrobromide
View DescriptionLatest drug reccntly approved for Amyotrophic Lateral sclerosis is?
A. Piracetam
B. Ceftriaxone
C. Edaravone
D. Doxycycline
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