Mycobacterium tuberculosis, Complex Detection and Rifampin Resistance by PCR

Abbrev Code:MTBRIF   
Order Code:LAB6512Order Name:MTB Complex and Resistance
Order Instructions:For FRMC: see Mycobacterium tuberculosis and Rifampin Resistance by PCR, Fairview Range Medical Center Only (MTBPCR)
Methodology:Polymerase chain reaction (PCR)
CPT Codes: 87556 x1, 87798 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-3 days.
Special Instructions:Specimen source is required.

Collection Instructions

Specimen:Respiratory specimen, CSF, pleural fluid or tissue
Optimal Volume:5-10 mL unprocessed respiratory specimen, CSF, pleural fluid, or tissue large enough to be ground; Label as unprocessed.
2-5 mL processed (digested) respiratory specimen, CSF, pleural fluid, or tissue in a sterile container.
Minimum\Peds Volume:1 mL processed or unprocessed specimen, respiratory specimen, CSF or pleural fluid.
Container:Sterile tube
Alternate Containers: Plastic leakproof container, sterile
Collection Instructions:Collection of early morning specimens of sputum on each of 3 consecutive days is optimum. Processed (digested) specimen must be less than 72 hours old and smear result provided.
Causes for Rejection:Blood, paraffin blocks, stool, swabs or urine

Processing and Shipping

Specimen Processing:Unprocessed specimens: Transport 5-10 mL respiratory specimen, CSFpleural fluid or tissue in a sterile container. Minimum 1 mL: label as unprocessed.
Processed specimens: Transport 2-5 mL digested/decontaminated respiratory specimen. Minimum 1 mL: identify method used for digestion.
Shipping Instructions:Ship at refrigerated temperature.
Stability:Collection to initiation of testing:
  • Unprocessed: Ambient - 3 days; Refrigerated - 1 week; Frozen - 1 month.
  • Processed: Ambient - unacceptable; Refrigerated - 1 week; Frozen - 1 month.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:2010775


Reference Range:By report. Body fluids other than pleural fluid will be run with a disclaimer.

Click HERE to Report test errors or omissions.
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