This mucus-like secretion may become infected, bloodstained, or contain abnormal cells that may lead to an diagnosis.
Sputum is what comes up with deep coughing .
You are asked to cough deeply and spit any sputum in a sterile cup. The sputum is then taken to the laboratory. There, it is placed in a medium under conditions that allow the organisms to grow. How to prepare for the test Increasing the amount of fluids the night before the test may help to get the sample. How the test will feel You will need to cough .