Sputum Culture

Why It Is Done

A sputum culture is done to:

• Detect and identify bacteria or fungi that are causing an infection (such as pneumonia or tuberculosis) of the lungs or the airways leading to the lungs. Symptoms of a lung infection may include difficulty breathing, pain when breathing, or a cough that produces bloody or greenish brown sputum.
• Identify the best antibiotic to treat the infection (sensitivity testing).
• Monitor treatment of an infection.

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Author:	Maria G. Essig, MS, ELS	Last Updated: March 21, 2007
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine Robert L. Cowie, MB, FCP(SA), MD, MSc, MFOM - Pulmonology
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