Mycobacterium tuberculosis Detection, NAA With Acid-fast Smear and Culture and Reflex to Identification
87556, 87206, 87116
MTB, PCR (With Smear, Culture, Identification, Susceptibility Testing)
Detect and identify Mycobacterium tuberculosis in specified specimen types.
Lung/respiratory tissue, sputum, bronchial washing/lavage, respiratory aspirate, body fluid, or cerebrospinal fluid (CSF)
5 mL sputum or respiratory aspirate/lavage, 2 cm³ tissue from fine needle biopsy, 5 mL CSF, 50 mL body fluid (eg, gastric aspirate/lavage, pleural, pericardial, chronic peritoneal dialysate, thoracentesis)
Sterile screw-cap container; seal cap tightly.
When collecting sputum, have the patient brush teeth, remove dentures, and rinse mouth with water. Instruct the patient not to collect saliva. When collecting aspirates, use standard aseptic preparation. Lung respiratory tissue may be fresh or frozen; nofixative.
If the specimen is to be split for additional testing, it should be divided so that each portion is transported at the appropriate temperature.
Quantity insufficient for testing; inappropriate specimen source (ie, other than those listed above); inappropriate specimen transport device; unlabeled specimen or name discrepancy between specimen and request label; specimen received after prolonged delay (usually more than 72 hours); specimen received in a fixative; specimen submitted with eSwab device. Blood and bone marrow are not suitable for amplification tests. Tissue not of respiratory origin will not be tested.