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Mycobacterium tuberculosis Complex, PCR

Test Codes

EPIC: LAB7574, Beaker: XTBBA, Mayo: MTBRP

Department

Send Outs

Specimen Collection Criteria

Collect: Body fluid or fresh tissue in a sterile collection container.

• BAL, Bronchial Wash, Sputum: Collect 3.0 mL. (Minimum: 1.0 mL)
• CSF: Collect 2.0 mL. (Minimum: 1.0 mL)
• Pericardial, Peritoneal, Pleural, Ocular Fluid: Collect 2.0 mL. (Minimum: 1.0 mL)
• Tissue: Collect 5-10 mm and keep moist with saline.

Physician Office/Draw Specimen Preparation

Maintain specimen refrigerated (2-8°C or 36-46°F) prior to transport.

Preparation for Courier Transport

Transport: Body fluid or fresh tissue in a sterile collection container, refrigerated (2-8°C or 36-46°F).

Rejection Criteria

Specimens not collected and processed as indicated.

In-Lab Processing

Maintain specimen refrigerated (2-8°C or 36-46°F) prior to transport.

Transport: Body fluid or fresh tissue in a sterile collection container, refrigerated (2-8°C or 36-46°F).

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Unacceptable
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen: (-20°C/-4°F or below): 7 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Clinic Laboratories in Rochester, MN.

Performed

Sunday – Saturday.
Results available in 2-4 days. 

Reference Range

By report.

Test Methodology

Real-Time Polymerase Chain Reaction (RT-PCR).

CPT Codes

87556; if appropriate add 87015.

Contacts

Last Updated

9/18/2023