Collect three to six early morning specimens on successive days and submit in separate containers.
Good specimens are material brought up by the lungs after a productive cough or nebulization.
At least 2.5 ml is needed for a valid test. At least 10 ml is needed for a valid test. Gastric Collect three early morning fasting specimens on successive days. At least 10 ml is needed for a valid specimen. Add 10 mg of sodium bicarbonate to neutralize the acidity.