Test Details
Mnemonic
METHD
Ordering Code
1750760
CPT-4 Code(s)
80358 (G0480)
Specimen Information
Collect
Red top
Specimen Preparation
Centrifuge, separate serum from cells and send 1.0 mL serum in a screw capped plastic vial.
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Serum Separator Tube (SST)
Stability
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 14 days
Refrigerated: 7 days
Frozen: 14 days
Methodology
High Performance Liquid Chromatography/Tandem Spectrometry
Reference Range
Therapeutic:
100 – 400 ng/mL (analgesic)
100 – 1000 ng/mL (addict therapy)
Toxic: >2000 ng/mL
100 – 400 ng/mL (analgesic)
100 – 1000 ng/mL (addict therapy)
Toxic: >2000 ng/mL
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
No