Which symptom is most characteristic of left-sided heart failure?

Which symptom is most characteristic of left-sided heart failure?

• A. Jugular venous distention
• B. Peripheral edema
• C. Orthopnea
• D. Hepatomegaly

Answer: (C)

Orthopnea is most characteristic of left-sided heart failure because it directly reflects pulmonary congestion caused by the left ventricle’s failure to effectively pump blood. When a person lies down, venous return increases, worsening pulmonary edema and causing shortness of breath. This need to sit up or prop up the upper body to breathe comfortably is a classic, distinguishing symptom of left-sided failure. The other signs listed—jugular venous distention, peripheral edema, and hepatomegaly—point more to right-sided or bi-ventricular congestion, where systemic venous pressures rise. Left-sided failure can also produce crackles on auscultation and a productive cough with frothy sputum, but orthopnea remains the hallmark.

Orthopnea is most characteristic of left-sided heart failure because it directly reflects pulmonary congestion caused by the left ventricle’s failure to effectively pump blood. When a person lies down, venous return increases, worsening pulmonary edema and causing shortness of breath. This need to sit up or prop up the upper body to breathe comfortably is a classic, distinguishing symptom of left-sided failure. The other signs listed—jugular venous distention, peripheral edema, and hepatomegaly—point more to right-sided or bi-ventricular congestion, where systemic venous pressures rise. Left-sided failure can also produce crackles on auscultation and a productive cough with frothy sputum, but orthopnea remains the hallmark.