Which medication class is commonly used to reduce fluid overload in congestive heart failure?

Which medication class is commonly used to reduce fluid overload in congestive heart failure?

• A. Calcium Channel Blockers
• B. Antibiotics
• C. Diuretics
• D. Narcotics

Answer: (C)

When congestive heart failure presents with fluid overload, the main goal is to remove excess fluid and lower filling pressures. Diuretics achieve this by increasing urine output, which reduces circulating volume (preload) and alleviates edema and pulmonary congestion. Loop diuretics, such as furosemide, are especially effective because they inhibit the Na-K-2Cl cotransporter in the thick ascending limb of the loop of Henle, producing rapid and substantial salt and water loss. This makes them the go-to agents for acute and chronic fluid control in heart failure. Thiazide diuretics can be added for additional effect if needed. Other options don’t address fluid overload directly: calcium channel blockers aren’t used for this purpose and can worsen heart failure in some patients; antibiotics treat infection, not edema; narcotics aren’t a primary therapy for relieving fluid overload.

When congestive heart failure presents with fluid overload, the main goal is to remove excess fluid and lower filling pressures. Diuretics achieve this by increasing urine output, which reduces circulating volume (preload) and alleviates edema and pulmonary congestion. Loop diuretics, such as furosemide, are especially effective because they inhibit the Na-K-2Cl cotransporter in the thick ascending limb of the loop of Henle, producing rapid and substantial salt and water loss. This makes them the go-to agents for acute and chronic fluid control in heart failure. Thiazide diuretics can be added for additional effect if needed. Other options don’t address fluid overload directly: calcium channel blockers aren’t used for this purpose and can worsen heart failure in some patients; antibiotics treat infection, not edema; narcotics aren’t a primary therapy for relieving fluid overload.