Which term describes the failure of the heart to pump effectively, causing excess blood or fluids in the lungs or body?

• A. Reticular activating system
• B. Angina pectoris
• C. Infarct
• D. Congestive heart failure

Answer: (D)

When the heart can’t pump effectively, blood backs up and fluids accumulate where they shouldn’t be—often in the lungs or in body tissues. Left-sided failure leads to pulmonary congestion and shortness of breath, while right-sided failure causes peripheral edema and fluid buildup elsewhere in the body. This combination of pumping failure with fluid congestion is described as congestive heart failure.

The other terms refer to different things: one is a brain structure involved in wakefulness, another describes chest pain from reduced blood flow to the heart, and another denotes tissue death from lack of blood. So the description of pumping failure with fluid buildup matches congestive heart failure. In the field, recognize it by signs like dyspnea, crackles, and edema, and manage with supportive oxygen and monitoring, positioning, and treating underlying causes as appropriate.