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Heart Failure Treatment Quiz

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Questions and Answers

What is the immediate relief mechanism provided by loop diuretics in pulmonary edema?

Arterial vasoconstriction

Reduced cardiac contractility

Venodilation prior to diuresis (correct)

Increased afterload

What is the primary aim of using diuretics in heart failure?

Decreasing congestive symptoms by mobilizing edema fluid (correct)

Inducing venodilation to reduce dyspnea

Increasing the preload to improve cardiac muscle contraction

Altering the basic pathology to decrease mortality

Which diuretics are recommended for heart failure due to their high ceiling diuretic effect?

Thiazide diuretics

Potassium-sparing diuretics like spironolactone

Osmotic diuretics like mannitol

Loop diuretics like furosemide and bumetanide (correct)

Which diuretic is known to decrease mortality in heart failure?

Spironolactone Signup and view all the answers

What is the primary function of inotropic drugs in CHF?

Increasing the contractility of the heart Signup and view all the answers

What is the primary mechanism of action of dobutamine in acute CHF?

Increasing cAMP in the heart by acting on β1 receptors Signup and view all the answers

At what dose does dopamine stimulate only dopamine receptors leading to renal vasodilation?

1-2 µg/kg/min Signup and view all the answers

Which statement best describes the action of cardiac glycosides like digoxin?

Positive inotropic effect without increasing heart rate or oxygen consumption Signup and view all the answers

What is the primary effect of dobutamine on the heart?

Increased cardiac contractility and output Signup and view all the answers

What distinguishes cardiac glycosides from other inotropes?

They do not increase heart rate or oxygen consumption Signup and view all the answers