Specimen: Submit Miscellaneous specimens (Sputum, Urine, Pus, Body Fluids like pleural, peritoneal, pericardial, gastric, bronchial, semen etc.) in a sterile screw capped container OR Swabs in sterile normal saline OR Bone marrow in 1 Green Top (Sodium Heparin) tube or smeared onto 4 clean glass slides fixed immediately in 95% ethanol for 30 minutes and air dried. For Gastric lavage, patient should be fasting for previous 12 hours. Transport the gastric lavage specimens within 4 hours of collection. Ship refrigerated. DO NOT FREEZE. Specify type of specimen on container and test request form.
Stability (Room): 2 hrs
Stability (Refrigerated): 24 hrs
Stability (Frozen): N/A
Method: Conventional microscopic examination
Comment: For tissue specimens contact Medilab AFB Stain. Sputum samples are reported as per RNTCP guidelines.
Price: Contact Medilab
Turnaround time (TAT): 10 – 15 days
Usage: Z-N (AFB) stain provides a presumptive diagnosis of Mycobacterial disease. It can be used to follow the progress of tubercular patients on therapy. AFB culture to be performed in all suspected cases.
Home Collection: Not Available
Pre-test Information: No special preparation required.