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Acid Fast Smear+Culture

Test ID: 


CPT code:

87206, 87116


•MTB, PCR (With Smear, Culture, Identification, Susceptibility Testing)

Clinical Use:

Detect and identify Mycobacterium tuberculosis in specified specimen types.

Specimen Type:

Lung/respiratory tissue, sputum, bronchial washing/lavage, respiratory aspirate, body fluid, or cerebrospinal fluid (CSF)

Requested Volume: 

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.

Container Type: 

Sterile screw-cap container; seal cap tightly.


If the specimen is to be split for additional testing, it should be divided so that each portion is transported at the appropriate temperature.

Storage Instructions:


Rejection Criteria

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.

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MCI Diagnostic

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