Test Overview
Test Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Stable Isotope Dilution Analysis
Reference Range *
> or = 18 years: < or = 0.3 ng/mL Reference values have not been established for patients who are < 18 years of age
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday
Analytic Time
3 - 20 days
Soft Order Code
BIOTN
Synonyms
- Vitamin B7
- Vitamin H
Laboratory
Sendout
Reference Laboratory
Mayo BIOTN
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum or plasma into a plastic vial and freeze.
Normal Volume
1 mL serum
Minimum Volume
0.5 mL serum
Storage Temperature
Frozen preferred, refrigerated acceptable
Additional Information
Test performed by Mayo Clinic Laboratories
Billing
CPT Code
84591
Fee Code
36524
LOINC
34398-8