Acid-fast bacilli Smear, AFB Smear, TB Smear, Mycobacterial Smear, Ziehl-Neelsen Stain for Mycobacteria, ZN-stain for Mycobacteria
Sputum, bronchoalveolar lavage, CSF, body fluid, tissue, pus etc
Smear prepared from digested, decontaminated and concentrated sample.
Screening: Auramine O stain. Fluorescent microscopy. Confirmatory: Ziehl Nielsen stain.
Acid-fast bacilli seen (with quantitation) / No Acid-fast bacilli seen Quantitation according to United States Centers for Disease Control and Prevention (CDC method)
8 - 24 hours
Monday – Saturday