Mycobacterium tuberculosis Complex, PCR, Non-Respiratory

Message

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Test Code

MTBNON

CPT Codes
87556

Preferred Specimen

1 mL CSF, gastric lavage, pericardial fluid, peritoneal fluid, pleural fluid, synovial fluid, abscess fluid or urine collected in a sterile, plastic leak-proof container or whole blood collected in an EDTA lavender top tube. Also acceptable 2 grams fresh (unfixed) tissue collected in a sterile, plastic leak-proof container or with a small amount of saline with no fixatives or preservatives or 0.5 mL vitreous (eye) fluid.

Minimum Volume

0.5 mL, 2 grams tissue, 0.2 mL vitreous fluid

Other Acceptable Specimens

0.5 mL vitreous (eye) fluid in a sterile leak-proof container

Instructions

Gastric lavage: Sterile leak-proof container. Must be neutralized with sodium bicarbonate within 4 hours of collection and store refrigerated.

Tissue: Fresh (unfixed) tissue submitted in a sterile, plastic, leak-proof container or Fresh (unfixed) tissue in a sterile plastic leak-proof container with a small amount of saline with no fixatives or preservatives and store refrigerated or frozen.

Transport Temperature

Vitreous (eye) fluid: Frozen
All other samples: Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 30 days
Vitreous (eye) fluid must be frozen

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Sputum, specimen received in formalin and/or alcohol, processed/concentrated specimen from client; swabs, formalin-fixed paraffin-embedded tissue, culture isolates, non-neutralized gastric lavage

Methodology
Real-Time Polymerase Chain Reaction

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes. This test should not be used for diagnosis without confirmation by other medically established means.

Setup Schedule

Set up: Daily; Report available: 1-3 days

Reference Range

Not detected

Clinical Significance

Used to aid the physician in the rapid diagnosis and treatment of a possible tuberculosis infection.

Performing Laboratory

Quest Diagnostics Nichols Institute

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

Last Updated: April 2, 2024

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.