Knowing how to collect specimens for testing such as urine tests, sputum samples, ADDIS sediment tests... will help bring accurate results and thereby make disease diagnosis easier.

Because of their lipid-rich cell wall structure, Mycobacteria cannot be detected by conventional Gram staining. Diagnosis of Mycobacteria infection can be made by using acid-fast bacillus (AFB) sputum staining to look for bacteria.