sputum

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  1. Polycherry

    Step I Why is sputum in pulmonary edema frothy pink?

    Pulmonary edema is where fluid leaks into the alveolar spaces. Clinically we are taught to differentiate between various types of sputum. The sputum in pulmonary edema is characteristically pink and frothy. The fluid that leaks into the alveolar spaces is a transudate and not blood. Hence it...