Which of the following is an indicator of fluid overload in a patient with heart failure?

• A. Decreased heart rate
• B. Weight gain
• C. Weight loss
• D. Improved edema

Answer: (B)

Fluid overload shows up as weight gain because extra fluid accumulates in the body when the heart cannot pump effectively. The kidney’s response to reduced perfusion is to retain sodium and water, increasing extracellular fluid. That added fluid the scale detects as a higher body weight, and it often accompanies edema and shortness of breath. Daily weights are a practical, objective way to monitor status and catch decompensation early, guiding treatment such as diuretics.

Decreased heart rate isn’t typically a sign of fluid overload; in fact, heart rate can be normal or elevated as the body tries to compensate. Weight loss would point away from overload, and improving edema indicates improvement, not overload. So weight gain stands out as the best indicator of fluid overload in heart failure.