10 Questions
What is the immediate relief mechanism provided by loop diuretics in pulmonary edema?
Venodilation prior to diuresis
What is the primary aim of using diuretics in heart failure?
Decreasing congestive symptoms by mobilizing edema fluid
Which diuretics are recommended for heart failure due to their high ceiling diuretic effect?
Loop diuretics like furosemide and bumetanide
Which diuretic is known to decrease mortality in heart failure?
Spironolactone
What is the primary function of inotropic drugs in CHF?
Increasing the contractility of the heart
What is the primary mechanism of action of dobutamine in acute CHF?
Increasing cAMP in the heart by acting on β1 receptors
At what dose does dopamine stimulate only dopamine receptors leading to renal vasodilation?
1-2 µg/kg/min
Which statement best describes the action of cardiac glycosides like digoxin?
Positive inotropic effect without increasing heart rate or oxygen consumption
What is the primary effect of dobutamine on the heart?
Increased cardiac contractility and output
What distinguishes cardiac glycosides from other inotropes?
They do not increase heart rate or oxygen consumption
Test your knowledge of heart failure treatment, including the use of diuretics and positive ionotropic agents to decrease congestive symptoms and increase contractility. Learn about the effects of loop diuretics like furosemide and bumetanide on preload.
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