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ATI Pharmacology Made Easy 4.0 Cardiovascular System Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the primary mechanism of action of beta-blockers in treating hypertension?✔✔Beta-blockers reduce blood pressure by blocking adrenergic receptors, decreasing heart rate and cardiac output.
Why are ACE inhibitors preferred in patients with both hypertension and diabetes?✔✔ACE inhibitors protect kidney function and reduce proteinuria, making them beneficial for diabetic patients with hypertension.
How do calcium channel blockers help in managing angina?✔✔Calcium channel blockers relax coronary arteries and reduce myocardial oxygen demand by decreasing heart rate and contractility.
What is a critical nursing consideration when administering nitroglycerin sublingually?✔✔Ensure the patient is sitting or lying down to prevent hypotension and check for expiration dates, as nitroglycerin loses potency quickly. 1 / 2
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Why must potassium levels be monitored in patients taking loop diuretics?✔✔Loop diuretics cause significant potassium loss, increasing the risk of hypokalemia and arrhythmias.
What is the key difference between heparin and warfarin in terms of monitoring?✔✔Heparin requires aPTT monitoring, while warfarin requires INR monitoring due to their different mechanisms of action.
How do statins contribute to cardiovascular health beyond lowering cholesterol?✔✔Statins stabilize atherosclerotic plaques and reduce inflammation in blood vessels, decreasing the risk of rupture.
What is the most serious adverse effect of thrombolytic therapy?✔✔The most serious risk is severe bleeding, including intracranial hemorrhage, due to systemic clot breakdown.
Why should NSAIDs be avoided in patients taking anticoagulants?
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