Which color sputum could indicate congestive heart failure?

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Multiple Choice

Which color sputum could indicate congestive heart failure?

Pink, frothy sputum is a classic sign of pulmonary edema from congestive heart failure. When the left side of the heart fails, fluid backs up into the lungs and leaks into the alveoli, mixing with a small amount of blood. That combination gives sputum its pink color and foamy texture, reflecting rapid fluid accumulation and respiratory strain. Clear sputum can occur with many non-heart–related conditions and isn’t specific for heart failure. Brown sputum suggests old blood or infection, not the acute fluid overload seen in CHF. Blue isn’t a typical descriptor for sputum in heart failure and would point to other issues like severe hypoxemia or methemoglobinemia.

Pink, frothy sputum is a classic sign of pulmonary edema from congestive heart failure. When the left side of the heart fails, fluid backs up into the lungs and leaks into the alveoli, mixing with a small amount of blood. That combination gives sputum its pink color and foamy texture, reflecting rapid fluid accumulation and respiratory strain. Clear sputum can occur with many non-heart–related conditions and isn’t specific for heart failure. Brown sputum suggests old blood or infection, not the acute fluid overload seen in CHF. Blue isn’t a typical descriptor for sputum in heart failure and would point to other issues like severe hypoxemia or methemoglobinemia.

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