The nurse is assessing a client who is admitted with left-sided heart failure. Which finding indicates that the client is progressing into pulmonary edema?

A. Fever of 102.2°F (39°C): A fever may suggest an infectious process such as pneumonia but is not a hallmark of pulmonary edema. While infection can exacerbate heart failure, the presence of fever alone does not indicate pulmonary fluid accumulation. B. Hacking, dry cough: A dry cough may be an early symptom of left-sided heart failure, but it is nonspecific and does not confirm pulmonary edema. As fluid accumulates, the cough becomes productive and is accompanied by other symptoms like dyspnea and crackles. C. Peripheral pitting edema: Peripheral edema is more closely associated with right-sided heart failure. Although some clients with left-sided failure can develop right-sided symptoms, peripheral edema does not directly signal pulmonary congestion or edema. D. Bilateral crackles in all lung fields: Crackles heard throughout the lung fields indicate fluid in the alveoli, a defining feature of pulmonary edema. This finding signifies worsening left-sided heart failure and impaired gas exchange, requiring prompt medical intervention.