Test Overview
Test Methodology

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Reference Range *

70 - 180 nmol/L

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday and Thursdays; two times per week
Analytic Time

8 hours

Soft Order Code
VITB1
MiChart Code
TDP Thiamine (Vitamin B1) Whole Blood
Synonyms
    Laboratory
    Chemical Pathology
    Section
    Drug Analysis
    Specimen Requirements
    Collection Instructions

    Whole Blood Lavender top (EDTA), protect from light, freeze, DO NOT SPIN
    Specimens must be frozen within 24 hours of collection. Transfer to an amber tube to protect from light.

    Alternate Specimen
    None
    Fasting Specimen
    Fasting overnight (12-14 hours) necessary
    Normal Volume
    1 mL of whole blood, EDTA
    Minimum Volume
    0.5 mL of whole blood, EDTA
    Storage Temperature
    Specimens must be frozen within 24 hours of collection. Freeze at -20 degrees.
    Rejection Criteria
    Grossly Lipemic, and clotted specimens
    Billing
    CPT Code
    84425
    Fee Code
    KA061
    LOINC
    32554.8
    NY State Approved
    No