Biomarker Lens

Biomarkers · Chemical

Pregnenolone, MS

Primary unit
ng/dL
LOINC codes
2837-3
Tests that measure Pregnenolone, MS
Quest Diagnostics 3, Labcorp 2

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, Pregnenolone, LC/MS 31493

PopulationInterval
Adult22-237 ng/dL
PediatricNot stated
1-59 days68-1303 ng/dL
60 days-1 year≤219 ng/dL
2-6 years≤140 ng/dL
7-9 years≤156 ng/dL
10-12 years15-220 ng/dL
13-17 years12-196 ng/dL

Quest Diagnostics test catalog, 31493

Tests

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

Quest Diagnostics 3 tests

Single-analyte tests

  • Pregnenolone, LC/MS 31493

    Serum · Fasting not stated · Turnaround Set up: Sun-Fri; Report available: 3-6 days

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Collection
    Collect blood in a Vacutainer® with no additives. Allow blood to clot (30 minutes) at room temperature, 18-25° C. Centrifuge and separate the serum from the cells. Freeze as soon as possible.
    Quest Diagnostics catalog page

Panels that include this biomarker

  • CAH Panel 6 (StAR Deficiency) 15276

    5 analytes · Serum · Fasting not stated

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Preparation
    Overnight fasting is preferred
    Collection
    Collect blood in a Vacutainer® with no additives. Allow blood to clot (30 minutes) at room temperature, 18-25°C. Centrifuge and separate the serum from the cells. Freeze as soon as possible. Specify age and sex on test request form. Immediately put sample on ice after collection.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Steroid Panel, Comprehensive 90392

    14 analytes · Serum · Fasting not stated

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Collection
    Collect blood in a Vacutainer® with no additives. Allow blood to clot (30 minutes) at room temperature, 18-25°C. Centrifuge and separate the serum from the cells. Freeze as soon as possible.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

Labcorp 2 tests

Single-analyte tests

  • Pregnenolone, Mass Spectrometry (Endocrine Sciences) 140707

    Serum · Fasting not stated · Turnaround 7 - 10 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Collection
    Serum or plasma must be separated from cells and transferred to a plastic transport tube within one hour of collection. The specimen should be frozen immediately and maintained frozen until tested. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
    Labcorp catalog page

Panels that include this biomarker

  • Pregnenolone, Pre- and Post-ACTH Stimulation 500773

    2 analytes · Serum · Fasting not stated · Turnaround 7 - 9 days

    Method and collection
    Method
    High-pressure liquid chromatography (HPLC)/tandem mass spectrometry
    Collection
    Draw two samples: one baseline and one stimulated 60 minutes. If a tube other than a gel-barrier is used, transfer separated serum or plasma to a plastic transport tube. Note: Label each tube with patient's name, collection time, and date. Submit specimens simultaneously on the same test request form. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested .
    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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