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ATI Pharmacology Made Easy 4.0 -- The Cardiovascular System Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the primary function of antihypertensive medications?✔✔To lower blood pressure and reduce the strain on the heart and blood vessels.
What class of drugs is commonly used to treat heart failure by improving cardiac output?✔✔Cardiac glycosides, such as digoxin.
How do beta-blockers help in managing hypertension?✔✔By blocking the effects of adrenaline, lowering heart rate and blood pressure.
What is the primary action of calcium channel blockers in treating angina?✔✔They relax blood vessels and reduce the heart’s workload by blocking calcium entry into the heart muscle.
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Which drug is commonly prescribed to prevent blood clot formation after a myocardial infarction (MI)?✔✔Aspirin or other antiplatelet medications.
What is the main goal of statin therapy in patients with cardiovascular disease?✔✔To lower cholesterol levels and reduce the risk of atherosclerosis and heart attacks.
What does the term "preload" refer to in cardiovascular pharmacology?✔✔The volume of blood returning to the heart and filling the ventricles before contraction.
Which medication is commonly used in the emergency treatment of acute heart failure to reduce fluid overload?✔✔Furosemide (Lasix), a loop diuretic.
What effect does nitroglycerin have on blood vessels?✔✔It dilates blood vessels, improving blood flow and reducing the heart’s oxygen demand.
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What is the primary function of angiotensin-converting enzyme (ACE) inhibitors in the cardiovascular system?✔✔They block the conversion of angiotensin I to angiotensin II, leading to vasodilation and decreased blood pressure.
What is the primary use of digoxin in heart failure management?✔✔To increase the force of heart contraction and improve cardiac output.
Which class of medications is commonly used to control abnormal heart rhythms, such as atrial fibrillation?✔✔Antiarrhythmic medications, such as amiodarone or lidocaine.
What is the primary concern when administering potassium-sparing diuretics?✔✔Monitoring for hyperkalemia, as these diuretics can increase potassium levels in the blood.
How does hydrochlorothiazide work as an antihypertensive?✔✔By reducing the amount of sodium and water in the body, leading to decreased blood volume and lower blood pressure.
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