Indications : The test is ordered to detect infections caused by acid fast bacteria in a person. Several species of the mycobacterium family cause TB in humans and animals. An early morning, deep ...

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 ...