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Biomarkers · Chemical

Nordiazepam

Also listed as
Nordiazepam, Serum
Primary unit
ug/mL
LOINC codes
3537-8, 59721-1
Tests that measure Nordiazepam
Quest Diagnostics 6, Labcorp 3

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, Clorazepate (Tranxene®) 90854

PopulationInterval
Nordiazepam100-500 ng/mL

Quest Diagnostics test catalog, 90854

Tests

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

Quest Diagnostics 6 tests

Single-analyte tests

  • Clorazepate (Tranxene®) 90854

    Serum · Fasting not stated · Turnaround Set up: Fri (10:00 a.m.); Report available: 1-8 days

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Collection
    Note: Assayed as its primary metabolite, Nordiazepam.
    Quest Diagnostics catalog page

Panels that include this biomarker

  • Chlordiazepoxide and Metabolites 91123

    3 analytes · Serum · Fasting not stated · Turnaround Set up: Tues, Thurs, Sat (10:00 a.m.); Report available: 2-4 days

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Preparation
    Collect at trough concentration, i.e., just before the administration of the next dose.
    Collection
    Serum separator tubes (SST) are not acceptable; use polyrpopylene tubes and ship on cold pack by overnight courier.
    Reference notes
    Chlordiazepoxide | 100-3000 ng/mL Norchlordiazepoxide | 100-3000 ng/mL Nordiazepam | 100-1500 ng/mL
    Quest Diagnostics catalog page

  • Diazepam and Metabolite 90853

    3 analytes · Serum · Fasting not stated · Turnaround Set up: Tues, Thurs, Sat (10:00 a.m.); Report available: 2-4 days

    Method and collection
    Method
    Calculation (CALC) • Chromatography/Mass Spectrometry
    Preparation
    Collect at trough concentration, i.e., immediately before the administration of the next dose
    Reference notes
    Diazepam | See Laboratory Report Nordiazepam | See Laboratory Report Diazepam and Nordiazepam Therapeutic | 100-1500 ng/mL Potentially toxic | >3000 ng/mL
    Quest Diagnostics catalog page

  • Benzodiazepines, Serum 70071

    14 analytes · Serum · Fasting not stated · Turnaround Set up: Tues, Thurs, Sat (10:00 a.m.); Report available: 1-3 days

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Reference notes
    Temazepam 50-1000 ng/mL Oxazepam Therapeutic 200-500 ng/mL Potentially toxic >2000 ng/mL Chlordiazepoxide 100-3000 ng/mL Norchlordiazepoxide 100-3000 ng/mL Nordiazepam 100-1500 ng/mL Alprazolam 10-50 ng/mL Alpha-Hydroxyalprazolam 5-25 ng/mL Alpha-Hydroxytriazolam 5-20 ng/mL Clonazepam 30-60 mcg/L Desalkylflurazepam 30-150 ng/mL Diazepam 100-1500 ng/mL Lorazepam 50-240 ng/mL Midazolam 50-600 ng/mL Triazolam 5-20 ng/mL
    Quest Diagnostics catalog page

  • 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

Labcorp 3 tests

Panels that include this biomarker

  • Diazepam, Serum or Plasma 007989

    3 analytes · Serum · Fasting not stated · Turnaround 2 - 4 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Collection
    Transfer separated serum or plasma to a plastic transport tube. Oral: peak: one hour after dose; IV: peak: 15 minutes after dose.
    Reference notes
    Therapeutic: diazepam + nordiazepam: 0.2−2.5 μg/mL
    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

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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.

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