What is a potential symptom of congestive heart failure?

Congestive heart failure (CHF) occurs when the heart is unable to pump blood effectively, leading to a decrease in its pumping power. This condition can result from various underlying issues that affect the heart's ability to function properly, such as coronary artery disease or high blood pressure. As a result, the heart muscles weaken, which is characterized by symptoms such as fatigue, weakness, and fluid retention.

Recognizing the weakening of the heart’s pumping power is crucial for understanding the impact of CHF on overall health. This symptom is significant because it directly affects the body's ability to receive adequate blood flow, leading to a range of complications and the need for medical intervention. Other symptoms may include shortness of breath, swelling in the legs, and a persistent cough, but the central issue in CHF is indeed the heart's diminished ability to pump effectively.

The other options presented do not accurately reflect the condition of congestive heart failure. Increased stamina is not a symptom of CHF; rather, patients often experience fatigue. Lower blood pressure can occur in certain situations, but it's not a hallmark symptom of CHF, where patients typically experience fluid overload and potentially elevated blood pressure due to compensatory mechanisms. Enhanced oxygen supply is also not typically associated with this condition; in