Which finding is most consistent with blunt cardiac injury?

Which finding is most consistent with blunt cardiac injury?

• A. Hypotension
• B. Hypertension
• C. Normal heart sounds
• D. Clear lungs

Answer: (A)

Blunt cardiac injury often causes myocardial contusion that impairs the heart’s pumping ability, leading to decreased cardiac output and shock-like hypotension. This makes low blood pressure the most directly associated finding with this injury. Hypertension is not typical in acute cardiac injury from blunt trauma, as the heart’s ability to pump effectively is compromised rather than overflow with pressure. Normal heart sounds aren’t reliable because contusion, arrhythmias, or pericardial involvement can alter sounds. Lungs may be clear or may show other injuries, but they don’t specifically point to blunt cardiac injury the way hypotension does.

Blunt cardiac injury often causes myocardial contusion that impairs the heart’s pumping ability, leading to decreased cardiac output and shock-like hypotension. This makes low blood pressure the most directly associated finding with this injury.

Hypertension is not typical in acute cardiac injury from blunt trauma, as the heart’s ability to pump effectively is compromised rather than overflow with pressure. Normal heart sounds aren’t reliable because contusion, arrhythmias, or pericardial involvement can alter sounds. Lungs may be clear or may show other injuries, but they don’t specifically point to blunt cardiac injury the way hypotension does.