What should a clinician expect to find in a patient with left-sided heart failure?

• A. Edema in legs
• B. Jaundice
• C. High blood pressure
• D. Crackles in lungs

Answer: (D)

In left-sided heart failure, the left ventricle can't pump blood forward effectively, so pressure backs up into the left atrium and then into the pulmonary veins. That backlog pushes fluid into the lung interstitium and alveoli, causing pulmonary edema. The hallmark sign you’d expect to hear on examination is crackles (rales) when listening to the lungs, especially at the bases, reflecting fluid in the lungs. This pulmonary congestion also explains symptoms like shortness of breath, orthopnea, and paroxysmal nocturnal dyspnea.

Leg edema can occur, but it’s more characteristic of right-sided (or biventricular) failure. Jaundice isn’t a primary feature of left-sided failure, and while high blood pressure can accompany heart failure, it isn’t the typical finding used to identify left-sided congestion. The most specific, exam-facing finding for left-sided heart failure is crackles in the lungs.