What Does the Colour of Phlegm Mean for your patient? Not all mucus is created equal. From yellow to charcoal grey, the colour of a patients sputum can give big clues about what’s going on inside their lungs. Swipe through to decode what your patient’s phlegm might be trying to tell you 👇 📌 Red? Think blood. 📌 Green? Infection. 📌 Pink & frothy? 🚨 Pulmonary oedema. Knowing what these colours can indicate might just give you a head start. 📚 Learn. Adapt. Respond. 🤕 Master trauma in 30 days.