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Common biomarkers

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

Biomarkers · Chemical

Vit. B1, Whole Blood

Primary unit
nmol/L
LOINC codes
32554-8
Tests that measure Vit. B1, Whole Blood
Labcorp 5, Quest Diagnostics 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, Micronutrient, Vitamin B1 (Thiamine), Blood 10189

PopulationInterval
≥18 years78-185 nmol/L

Quest Diagnostics test catalog, 10189

Tests

Check the catalog code, specimen, method and preparation for every test that measures Vit. B1, Whole Blood. Select up to five tests to compare them side by side.

Labcorp 5 tests

Single-analyte tests

  • Vitamin B1, Whole Blood 121186

    Blood · Fasting not stated · Turnaround 4 - 6 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Preparation
    Blood samples should be collected before breakfast in the morning and prior to any medication.
    Collection
    Draw blood. Do not separate. Transfer to a plastic transport tube. Freeze. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
    Reference notes
    66.5−200.0 nmol/L
    Labcorp catalog page

Panels that include this biomarker

  • Pre-Bariatric Surgery Micronutrient Profile 259104

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

    Method and collection
    Method
    See individual test components.
    Labcorp catalog page

  • Post-Bariatric Surgery Micronutrient Profile 259129

    33 analytes · Serum · Fasting not stated · Turnaround 3 - 5 days

    Method and collection
    Method
    See individual test components.
    Labcorp catalog page

  • Post-Bariatric Surgery Comprehensive Profile 259090

    50 analytes · Serum · Fasting not stated · Turnaround 5 - 7 days

    Method and collection
    Method
    See individual test components.
    Labcorp catalog page

  • Pre-Bariatric Surgery Comprehensive Profile 259141

    50 analytes · Serum · Fasting not stated · Turnaround 5 - 7 days

    Method and collection
    Method
    See individual test components.
    Labcorp catalog page

Quest Diagnostics 3 tests

Single-analyte tests

  • Micronutrient, Vitamin B1 (Thiamine), Blood 10189

    Blood · Fasting required · Turnaround Set up: Mon-Sat

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Preparation
    Overnight fasting is required
    Collection
    Patients should be 18 years of age or greater. Transfer whole blood to amber transport tube. If amber transport tube is not available, wrap tube in aluminum foil to protect from light. Freeze immediately.
    Quest Diagnostics catalog page

  • Vitamin B1 (Thiamine), Blood, LC/MS/MS 5042

    Blood · Fasting required · Turnaround Set up: Mon-Sat 8:00 a.m.; Report available: 2-3 days

    Method and collection
    Method
    Chromatography/Mass Spectrometry
    Preparation
    Overnight fasting is required
    Collection
    Transfer whole blood to amber transport tube. If amber tube is not available, wrap tube in aluminum foil to protect from light. Freeze immediately.
    Reference notes
    78-185 nmol/L
    Quest Diagnostics catalog page

Panels that include this biomarker

  • Micronutrients, B-Vitamin Panel 10195

    7 analytes · Serum · Fasting required

    Method and collection
    Method
    Immunoassay (IA) • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
    Preparation
    Overnight fasting is required. Avoid vitamin supplements for 24 hours prior to collection.
    Collection
    Patients should be 18 years of age or greater. Folate & Vitamin B12: Transfer 2 mL (1 mL min) serum into plastic transport tube, ship frozen. Vitamin B2, B3, B5: Transfer 2 mL (1 mL min) serum into an amber vial (or wrap with aluminum foil), ship frozen. Vitamin B6: Transfer 3 mL (1 mL min) EDTA plasma into an amber vial (or wrap with aluminum foil), ship frozen. ⁠⁠⁠⁠⁠⁠⁠Separate cells within 24 hours by centrifugation for 5-10 minutes. Transfer plasma to an amber polypropylene or polyethylene transport tube to protect from light. Alternately, neutral color polypropylene or polyethylene tube can be used if wrapped in aluminum foil. Freeze the tubes at -10 to -30° C. Ship frozen. Vitamin B1: Transfer 3 mL (1 mL min) EDTA whole blood into an amber vial (or wrap with aluminum foil), ship frozen. Dietary supplements containing biotin may interfere in assays and may skew analyte results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation. Remove serum or plasma from cells within 4 hours of collection.
    Reference notes
    ≥18 years Folate | >5.4 ng/mL Vitamin B1 (Thiamine) | 78-185 nmol/L Vitamin B2 | 6.2-39.0 nmol/L Vitamin B3 | ≤110 ng/mL Vitamin B5 | <275 ng/mL Vitamin B6 | 5.1-54.8 ng/mL Vitamin B12 | 200-1100 ng/mL Reference range not available for individuals <18 years for this micronutrient test.
    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.

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