Which condition occurs when the heart cannot pump enough blood to meet the body's needs, causing fatigue and pulmonary congestion?

• A. Congestive heart failure
• B. Myocardial infarction
• C. Pericarditis
• D. Atrial fibrillation

Answer: (A)

This describes a situation where the heart cannot pump enough blood to meet the body's needs, so tissues don’t receive adequate oxygen and nutrients, leading to fatigue. At the same time, blood backs up, especially into the lungs, causing pulmonary congestion. This combination is characteristic of congestive heart failure, a state where the heart’s pumping efficiency is insufficient to maintain forward flow and manage pressures in the pulmonary and systemic circulations.

In contrast, a myocardial infarction is an acute event from a blocked coronary artery causing heart muscle damage and chest pain; pericarditis is inflammation of the lining around the heart; atrial fibrillation is an irregular heart rhythm that can disrupt pumping but doesn’t by itself define the simultaneous fatigue with lung congestion.