What does cardiac tamponade lead to?

• A. Cardiovascular collapse
• B. Pulmonary edema
• C. Sepsis
• D. Arrhythmia

Answer: (A)

Fluid piling up in the pericardial sac increases pressure around the heart and prevents it from filling properly during diastole. When filling is impeded, preload drops, stroke volume falls, and cardiac output declines, leading to poor organ perfusion. In severe cases this can progress to cardiovascular collapse if not rapidly relieved by removing the excess fluid. Pulmonary edema, sepsis, or primary arrhythmias aren’t the characteristic consequence of tamponade—those scenarios involve different paths to shock or instability. The hallmark outcome of tamponade is obstructive physiology with failing circulation, i.e., cardiovascular collapse.