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Mucus culture
Some kinds of bacteria thrive in the mucus produced in the sinuses and airways of the lungs. A culture of this mucus can help identify an infection. Lung and/or sinus infections can complicate and/or mimic some symptoms of COPD.
How it's done: In this test, you will be asked to cough up phlegm into a sterile container and bring it to the laboratory, where it will be cultured.
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