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Biomarkers · Chemical

Benzodiazepines

Also listed as
BENZODIAZEPINES, IA
Primary unit
ng/mL
LOINC codes
46976-7, 42662-7
Tests that measure Benzodiazepines
Labcorp 6, Quest Diagnostics 4

Ranges

Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ

Quest Diagnostics, Drug Screen Clinical 1 without Confirmation Serum 1025

PopulationInterval
Acetaminophen10-20 mg/L
SalicylatesNot stated
Therapeutic (not for use with single dose intoxication)Not stated
Analgesic50-100 mg/L
Anti-Inflammatory150-300 mg/L

Quest Diagnostics test catalog, 1025

Tests

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

Labcorp 6 tests

Single-analyte tests

  • Benzodiazepines Screen With Reflex Confirmation, Whole Blood 700878

    Blood · Fasting not stated · Turnaround 4 - 10 days

    Method and collection
    Method
    Initial presumptive testing by immunoassay at a testing threshold of 20 ng/mL; presumptive positives confirmed to limit of quantitation by definitive chromatography mass spectrometry (GC/MS or LC/MS-MS).
    Labcorp catalog page

  • Benzodiazepines, Screen Only, Whole Blood 791540

    Blood · Fasting not stated · Turnaround 3 - 5 days

    Method and collection
    Method
    Presumptive testing by immunoassay (IA) at a testing threshold of 20 ng/mL. Presumptive positives are not confirmed by a definitive method.
    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

  • 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

  • Benzodiazepine Confirmation, Quantitative, Whole Blood 791710

    18 analytes · Blood · Fasting not stated · Turnaround 5 - 10 days

    Method and collection
    Method
    Liquid chromatography tandem mass spectrometry (LC/MS-MS)
    Labcorp catalog page

  • Benzodiazepines Confirmation, Quantitative, Serum or Plasma 791886

    18 analytes · Serum · Fasting not stated · Turnaround 5 - 10 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Collection
    Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.
    Labcorp catalog page

Quest Diagnostics 4 tests

Panels that include this biomarker

  • Drug Screen Clinical 1 without Confirmation Serum 1025

    6 analytes · Serum · No fasting

    Method and collection
    Method
    Chromatography • Immunoassay (IA)

  • Drug Monitoring Assess Panel, Base, Quantitative, Urine 39989

    7 analytes · Urine · Fasting not stated

    Method and collection
    Method
    Mass Spectrometry (MS)
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Drug Monitoring Assess Panel, Plus, Quantitative, Urine 39991

    9 analytes · Urine · Fasting not stated

    Method and collection
    Method
    Mass Spectrometry (MS)
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Drug Monitoring Assess Panel, Extended, Quantitative, Urine 39992

    22 analytes · Urine · Fasting not stated

    Method and collection
    Method
    Mass Spectrometry (MS)
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

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Sources

Verify these ranges and sources

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.

Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.

Spotted an error? Email hello@biomarkerlens.com with the page URL and the primary source that corrects the entry.