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Test ID FPMET Prometheus Thiopurine Metabolites

Method Name

High Performance Liquid Chromatography (HPLC)

Reporting Name

Prometheus Thiopurine Metabolites

Specimen Type

Whole Blood EDTA

Draw 5 mL EDTA whole blood. Submit EDTA whole blood promptly at refrigerated temperature.

Specimen Minimum Volume

Pediatric Minimum Volume: 3 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood EDTA Refrigerated (preferred) 8 days
  Ambient  24 hours

Reference Values

Units of Measure:  pmol/8 x 10(8) RBC

 

Metabolite                                                   Reference Range

6-TGN                                                                 230-400

6-MMPN                                                              <5700

 

Proprietary and patented technology by Prometheus Laboratories, Inc.  The therapeutic range and toxic thresholds were established in an IBD patient population receiving azathioprine or 6-mercaptopurine.  Metabolite testing should not replace laboratory monitoring for toxicity.

 

Report Available

3 days

Performing Laboratory

Prometheus Laboratories, Inc. Therapeutics and Diagnostics

CPT Code Information

82542

NY State Approved

Yes