The Culture Sputum (Aerobic) test is used to detect bacterial infections in sputum, the thick mucus that is coughed up from the respiratory tract. A sample of sputum is collected and cultured in an aerobic environment (with oxygen) to allow any bacteria present to grow.

This test is commonly used to diagnose respiratory infections, such as pneumonia , tuberculosis , bronchitis , or chronic conditions like chronic obstructive pulmonary disease (COPD) . It helps identify the specific bacteria responsible for the infection, allowing for the selection of the most effective antibiotics for treatment. The test may also be used to check for antibiotic resistance in bacterial strains.