CMC Cardiac Pharmacology & Medications Flashcards
6 cards from real CMC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CMC Cardiac Pharmacology & Medications flashcards as text
Which drug class is first-line for reducing ventricular rate in atrial fibrillation?
Answer: Beta-blockers
Beta-blockers reduce ventricular rate by blocking sympathetic stimulation of the AV node.
ACE inhibitors lower blood pressure primarily by blocking which enzyme?
Answer: Angiotensin-converting enzyme
ACE inhibitors block angiotensin-converting enzyme, preventing formation of angiotensin II and lowering blood pressure.
Which anticoagulant requires regular INR monitoring due to its narrow therapeutic window?
Answer: Warfarin
Warfarin requires INR monitoring because of its variable metabolism and narrow therapeutic range.
Digoxin is used in cardiac care primarily for which two conditions?
Answer: Atrial fibrillation and heart failure
Digoxin controls ventricular rate in atrial fibrillation and increases contractility in heart failure via Na+/K+-ATPase inhibition.
Statins reduce cardiovascular risk by inhibiting which enzyme in the cholesterol synthesis pathway?
Answer: HMG-CoA reductase
Statins inhibit HMG-CoA reductase, the rate-limiting enzyme in hepatic cholesterol biosynthesis, lowering LDL.
Nitroglycerin relieves angina through which primary mechanism?
Answer: Vasodilation via nitric oxide release
Nitroglycerin releases nitric oxide, causing venodilation that reduces preload and decreases myocardial oxygen demand.