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What is this test?
➤ A sputum stain for Mycobacteria is a laboratory test performed on a sample of your sputum, or phlegm. It’s also known as an acid-fast bacillus (AFB) stain or a tuberculosis (TB) smear. A doctor typically orders the test to determine if a person has tuberculosis (TB) or another type of mycobacterial infection.
➤ DO NOT eat, drink or smoke before coughing up sputum from the lungs. DO NOT use mouthwash, or oral drugs that might contaminate the specimen.