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Epic Code LAB3609 Vitamin B1 Blood Level

Important Note

Fasting specimen required (12-14 hours fasting).

Specimen not eligible for add-on testing: Specimen not viable for add-ons due to being frozen once received in Toxicology.

Test Name Alias

Thiamin |Thiamine | 8236 | 8236

Interface Order Alias

55058

Quick Collect

+WB/R

Collection Instructions

Specimen Collection: Blood

 

Container(s): Lavender top (EDTA)

Preferred Volume to Collect: 3.0 mL

Minimum Volume to Collect: 1.0 mL

Neonate Volume to Collect: 1.0 mL

Capillary collect ok? Yes

Microtainer acceptable?  No

 

Collection Instructions:

  • Fasting specimen required (12-14 hours fasting).
  • After collection, gently invert tube 8-10 times.
  • Refrigerate immediately after collection

 

Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Whole Blood
  • Transport Temperature: Refrigerated 

 

Specimen Stability

Ambient: 6 days

Refrigerate: 14 days

Frozen: 14 days

Laboratory Retention: 7 days

Test Frequency

Test is run on Monday and Thursday.

Usual TAT 2-8 days.

Reference Range

70-180 nmol/L

Performing Department

Toxicology

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Methodology

High-Performance Liquid Chromatography (HPLC) with Fluorescence Detection

 

This test was developed and its performance characteristics determined by Spectrum Health Toxicology Laboratory. It has not been cleared or approved by the FDA. The laboratory is regulated under CLIA as qualified to perform high-complexity testing. This test is used for clinical purposes. It should not be regarded as investigational or for research.

CPT

84425

CDM Code

3018442501

Epic Test ID

1230101285

Mayo Access Code

SHO55058

Additional Information

Formerly sent to Mayo Medical Laboratory. Moved to Spectrum Health Laboratory 5/9/16.

Reviewed Date

2/15/2023