Which sign would most strongly suggest cardiac tamponade in chest trauma?

• A. Diminished breath sounds
• B. Widening pulse pressure
• C. Engorged jugular veins
• D. A rapid, irregular pulse

Answer: (C)

Cardiac tamponade after chest trauma causes pericardial pressure to rise, squeezing the heart and preventing proper filling. This leads to increased pressure in the venous system, so jugular veins become visibly distended. In the acute setting, engorged jugular veins are a classic and strong clue that the heart can’t fill normally because of the pericardial fluid or blood compressing it.

Diminished breath sounds would more likely point to a pneumothorax or hemothorax. A rapid, irregular pulse suggests an arrhythmia rather than tamponade itself. Widening pulse pressure is not typical of tamponade, which usually presents with a narrowing pulse pressure as pressures drop. So the engorged jugular veins best indicate tamponade.