What are the causes of cardiac tamponade?

What are the causes of cardiac tamponade?

• A. Asthma
• B. Trauma
• C. Hyperthyroidism
• D. Dehydration

Answer: (B)

Cardiac tamponade occurs when the pericardial space fills with fluid or blood to the point that the outer pressure on the heart prevents adequate filling during diastole, leading to a sharp drop in cardiac output. Trauma to the chest can cause bleeding into the pericardial sac (hemopericardium) or rupture of cardiac structures, producing rapid accumulation of fluid and compressing the heart. This makes trauma the correct cause among the options. The other conditions listed don’t directly cause tamponade: asthma is an airway disease, hyperthyroidism affects metabolism and vascular tone but not pericardial pressure, and dehydration lowers preload rather than creating a compressive pericardial process. In practice, tamponade presents with hypotension, jugular venous distension, muffled heart sounds, and sometimes pulsus paradoxus, and it requires urgent intervention to relieve the pressure.

Cardiac tamponade occurs when the pericardial space fills with fluid or blood to the point that the outer pressure on the heart prevents adequate filling during diastole, leading to a sharp drop in cardiac output. Trauma to the chest can cause bleeding into the pericardial sac (hemopericardium) or rupture of cardiac structures, producing rapid accumulation of fluid and compressing the heart. This makes trauma the correct cause among the options. The other conditions listed don’t directly cause tamponade: asthma is an airway disease, hyperthyroidism affects metabolism and vascular tone but not pericardial pressure, and dehydration lowers preload rather than creating a compressive pericardial process. In practice, tamponade presents with hypotension, jugular venous distension, muffled heart sounds, and sometimes pulsus paradoxus, and it requires urgent intervention to relieve the pressure.