Which finding most strongly suggests left-sided heart failure in an older patient?

• A. Fever And Cough With Green Sputum
• B. Jugular Venous Distention And Peripheral Edema
• C. Swelling Of The Lower Extremities And Weakness
• D. Tachypnea And Paroxysmal Nocturnal Dyspnea

Answer: (D)

Left-sided heart failure shows up mainly as pulmonary congestion, so the most telling signs are breathing problems tied to fluid backing up into the lungs. Tachypnea reflects the lungs working hard to exchange gas when they’re flooded, and paroxysmal nocturnal dyspnea occurs when fluid shifts into the lungs after lying down, waking the patient with difficulty breathing. This combination points directly to left-sided failure causing pulmonary edema.

The other options are less specific. Fever with productive cough suggests a respiratory infection rather than heart failure. Swelling of the lower extremities and weakness can occur with many conditions and isn’t specific to left-sided failure. Jugular venous distention with peripheral edema signals venous congestion more characteristic of right-sided or biventricular failure, not isolated left-sided failure.