Biomarker Lens

Common biomarkers

  • Hemoglobin
  • Glucose
  • ALT
  • Apolipoprotein B
  • C-Reactive Protein, Cardiac
  • Ferritin
  • Alb/Creat Ratio, Urine
  • Alkaline Phosphatase
  • FSH
  • T4,Free(Direct)

Biomarkers · Chemical

THC(MARIJUANA) METABOLITE, IA

Primary unit
ng/mL
LOINC codes
8172-9
Tests that measure THC(MARIJUANA) METABOLITE, IA
Labcorp 2

Tests

Check the catalog code, specimen, method and preparation for every test that measures THC(MARIJUANA) METABOLITE, IA. Select up to five tests to compare them side by side.

Labcorp 2 tests

Single-analyte tests

  • Tetrahydrocannabinol (THC), Screen With Reflex Confirmation, Serum 700834

    Serum · Fasting not stated · Turnaround 3 - 10 days

    Method and collection
    Method
    Initial presumptive testing by immunoassay at the following testing threshold: tetrahydrocannabinol (THC), 5.0 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 plastic transport tube.
    Labcorp catalog page

Panels that include this biomarker

  • 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

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Sources

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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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