Days Set Up
Tuesday-Saturday
Analytic Time

6-10 days

MiChart Code
Thiamin, serum/plasma (Vit B1)
Soft Order Code
PLVB1

Test Updated:

Synonyms

B1, Plasma or Serum
B1
Thiamine, Plasma or Serum
Thiamine
PLVB1

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

LC/MS-MS

Test Usage
 
Reference Range

>= 17 years old: 8-30 nmol/L

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

Specimen Requirements

Collection Instructions

Collect specimen in a lavender top or red top tube. Centrifuge, aliquot plasma or serum into a plastic vial within 4 hours of collection and freeze. Protect specimen from light.

Normal Volume
2 mL plasma or serum
Minimum Volume
1 mL plasma or serum

Billing Information

CPT Code
84425
Pro Fee Code
 
Insurance Auth Info
 
LOINC
2999-1

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.