Questions and Answers
What is the primary mechanism of action of cardiac glycosides like Digoxin in increasing contractility in the heart?
Inhibiting the Na+/K+- ATPase
What effect do calcium channel blockers (Dihydropyridines) have on contractility in the heart?
No effect on contractility
Which type of drugs act on Autonomic Neural Control by being Cardio-Selective β-Blockers?
Phosphodiestrase Inhibitors
What is the primary mechanism of action of drugs modulating the Renin-Angiotensin-Aldosterone system (RAAS) in managing heart failure?
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Which of the following is NOT a characteristic of inotropic drugs used in acute heart failure?
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What role do non-dihydropyridine calcium channel blockers play in managing heart conditions?
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Which class of CCBs has greater selectivity for vascular smooth muscle cells than for cardiac myocytes?
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Which class of CCBs is primarily used to treat hypertension due to their high vascular selectivity?
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Which CCB class can lead to reflex cardiac stimulation (tachycardia and increased inotropy) due to their powerful systemic vasodilator effects?
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Which class of CCBs is relatively selective for the myocardium and less effective as a systemic vasodilator drug?
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Which drug is an intermediate between verapamil and dihydropyridines, reducing arterial pressure without causing significant reflex cardiac stimulation?
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What is the primary mechanism of action of Cardiac Glycosides like Digoxin?
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What is the primary mechanism of action of Calcium Channel Blockers (CCBs) like Dihydropyridines?
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Which effect is NOT associated with the action of Dihydropyridines?
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What is the primary pharmacological action of Cardiac Glycosides such as Digoxin?
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Which of the following is a characteristic of Non-Dihydropyridine Calcium Channel Blockers?
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Which process is NOT modulated by Autonomic Neural Control in the cardiovascular system?
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Inotropic drugs primarily affect which aspect of cardiac function?
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