Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Stable Isotope Dilution Analysis
Synonyms
Vitamin B7; Vitamin H
Performing Lab
Mayo Medical Lab
Epic ID
Other Reference Test
Lab Test Days
Monday
Standard TAT
7 Days
Collection Information
Specimen Required
1-2 mL Blood
Container Type
Red-Top Tube
Processing Information - Lab Use Only
Transport Temperature
Refrigerated-OK/Frozen-OK
Specimen Stability
Room Temp: 24 Hours; Refrigerated: 7 Days; Frozen: 30 Days (Preferred)
Test Volume Required
1 mL Serum
Minimum Test Volume
0.5 mL Serum
Processing Instructions
Order in Mayolink and send with Mayo courier Monday-Friday.
Comments
This test is not useful as a screen for biotinidase deficiency.
CPT Codes
84591
Revised
1/4/24
Initials
SA