Sputum stain for mycobacteria
Alternate Names : Acid fast bacilli stain, AFB stain, Tuberculosis smear, TB smear
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Sputum test
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A sputum sample is obtained by coughing deeply and expelling the material that comes from the lungs into a sterile cup. The sample is taken to a labarotory and placed in a medium under conditions that allow the organisms to grow. A positive culture may identify disease-producing organisms that may help diagnose bronchitis, tuberculosis, a lung abscess, or pneumonia.
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