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Biomarkers · Chemical

Methadone

Also listed as
Methadone (Dolophine), Serum
Primary unit
ng/mL
LOINC codes
3772-1, 72400-5, 59705-4
Tests that measure Methadone
Labcorp 5, Quest Diagnostics 3

Tests

Check the catalog code, specimen, method and preparation for every test that measures Methadone. Select up to five tests to compare them side by side.

Labcorp 5 tests

Single-analyte tests

  • Methadone Peak Level, Serum or Plasma 007784

    Serum · Fasting not stated · Turnaround 3 - 6 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Collection
    Transfer separated serum or plasma to a plastic transport tube.
    Labcorp catalog page

  • Methadone, Serum or Plasma 007781

    Serum · Fasting not stated · Turnaround 3 - 6 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Collection
    Transfer separated serum or plasma to a plastic transport tube.
    Reference notes
    Therapeutic: 100−400 ng/mL
    Labcorp catalog page

Panels that include this biomarker

  • Methadone and Metabolite, With Ratio, Plasma 702096

    3 analytes · Plasma · Fasting not stated · Turnaround 3 - 6 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Collection
    Transfer separated plasma to a plastic transport tube. Freeze.
    Labcorp catalog page

  • Drug Screen 12 With Reflex Confirmation (AMP,BAR,BZO,COC,PCP,THC,OPI,OXY,MD,FEN,PPX,TRAM), Serum 700845

    12 analytes · Serum · Fasting not stated · Turnaround 3 - 10 days

    Method and collection
    Method
    Initial presumptive testing by immunoassay at the following testing thresholds: amphetamines, 50 ng/mL; barbiturates, 0.1 μg/mL; benzodiazepines, 20 ng/mL; cocaine metabolite, 25 ng/mL; fentanyl, 1.0 ng/mL; methadone, 25 ng/mL; opiates, 5 ng/mL; oxycodones, 5 ng/mL; phencyclidine (PCP), 8 ng/mL; propoxyphene, 50 ng/mL; tetrahydrocannabinol (THC), 5 ng/mL; tramadol, 50 ng/mL; presumptive positives confirmed to limit of quantitation by definitive chromatography mass spectrometry (GC/MS or LC/MS-MS)
    Collection
    Serum should be separated from cells within two hours of venipuncture. Submit serum in a plastic transport tube.
    Labcorp catalog page

  • Drug Screen 15 With Reflex Confirmation (AMP,BAR,BZO,COC,PCP,THC,OPI,OXY,MD,FEN,BUP,PPX,TRAM,GABA,CAR), Whole Blood 700902

    15 analytes · Blood · Fasting not stated · Turnaround 4 - 10 days

    Method and collection
    Method
    Initial presumptive testing by immunoassay at the following testing thresholds: amphetamines, 50 ng/mL; barbiturates, 0.1 μg/mL; benzodiazepines, 20 ng/mL; buprenorphine, 1.0 ng/mL; carisoprodol, 0.5 μg/mL; cocaine metabolite, 25 ng/mL; fentanyl, 1.0 ng/mL; gabapentin, 1.0 μg/mL; methadone, 25 ng/mL; opiates, 5 ng/mL; oxycodones, 5 ng/mL; phencyclidine (PCP), 8 ng/mL; propoxyphene, 50 ng/mL; tetrahydrocannabinol (THC), 5 ng/mL; tramadol, 50 ng/mL; presumptive positives confirmed to limit of quantitation by definitive chromatography mass spectrometry (GC/MS or LC/MS-MS)
    Labcorp catalog page

Quest Diagnostics 3 tests

Single-analyte tests

  • Methadone, Quantitative, Serum 3258

    Serum · Fasting not stated · Turnaround Set up: Mon-Sat

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

Panels that include this biomarker

  • Expanded Drug Screen, Umbilical Cord Tissue 94484

    31 analytes · 10 g umbilical cord · Fasting not stated · Turnaround Set up: Daily; Report available: 1 day

    Method and collection
    Method
    High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
    Collection
    Collect at least 6 inches of umbilical cord (approximately the length of an adult hand). Drain and discard any blood. Rinse the exterior of the cord segment with normal saline or sterile water. Pat the cord dry and place in container for transport. Store at refrigerated temperature.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Comprehensive Drug Screen, Umbilical Cord Tissue 94488

    59 analytes · 10 g umbilical cord · Fasting not stated · Turnaround Set up: Mon-Sat

    Method and collection
    Method
    High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
    Collection
    Collect at least 6 inches of umbilical cord (approximately the length of an adult hand). Drain and discard any blood. Rinse the exterior of the cord segment with normal saline or sterile water. Pat the cord dry and place in container for transport. Store at refrigerated temperature.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

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Lab catalogs

Codes and registries

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We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

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