Test Detail

Mycobacterium tuberculosis Complex, NAAT

Test Code:

LAB1357

CPT Code:

87556

Order Information

Synonyms	Mycobacterium tuberculosis Complex PCR; AFB
Specimen Container	Sterile Leak-Proof Container; Also acceptable: COPAN eSwab; BBL Dual Swab; CSF Sterile Tube
Minimum Volume	0.5 mL fluid
Specimen Handling	Sterile Leak-Proof Container, eSwab, BBL Dual Swab Collect specimens using standard collection guidelines Note: tissue specimens should be placed in 0.5 mL sterile saline Tightly cap Refrigerate CSF Sterile Tube Collect CSF using standard collection guidelines Refrigerate
Patient Prep	Indicate specimen source on test requisition form
Collection Procedure	Sterile Leak-Proof Container Body Fluid Bronchoalveolar Lavage (BAL) Bronch Wash CSF Sputum Stool Tissue Urine Also acceptable: COPAN eSwab BBL Dual Swab CSF Sterile Tube Respiratory specimen processed by NaOH-NALC digestion/decontamination
Unacceptable Conditions	Leaking specimens
Temperature	Refrigerated (2-8°C)
Methodology	Polymerase Chain Reaction by Real-Time Detection (PCR)
Stability	Sterile, Leak-Proof Container, Swabs, CSF Sterile Tube Ambient: 1 hour Refrigerated: 3 days Frozen: 1 month Decontaminated and concentrated samples Ambient: 1 hour Refrigerated: 1 week Frozen: 6 months
Schedule	Batched 2-3 times per week
Turn Around Time	Within 4 days
Place of Service	LabCorp Halsey Microbiology
Interpretive Data	To perform this Test it is essential to know if the submitted specimen has been processed (digestion and decontamination procedure). This test should not be used as a substitute for culture. It should be used as an adjunct to culture. A negative result does not rule out disease. This is an amplified method used to detect Mycobacterium tuberculosis complex nucleic acid in the raw specimen. It is used as an aid in the rapid diagnosis and treatment of a possible tuberculosis infection. A negative result does not rule out the presence of PCR inhibitors in the patient specimen or MTB DNA concentrations below the level of detection of the assay. Performance characteristics were determined by PHS Infectious Diseases and Molecular Diagnostics laboratory.