Update Type: New Tests
Test Updated: 03/31/2022
Test Overview
Test Methodology
Liquid Chromatography- Tandem Mass Spectrometry (LC-MS/MS)
Reference Range *
Nicotinic Acid (Niacin) Cutoff <5.0 ng/mL Nicotinamide: 5.0 - 48.0 ng/mL Nicotinuric acid Cutoff: <5.0 ng/mL
Test Details
Days Set Up
Monday, Tuesday, Thursday, Friday
Analytic Time
3 - 5 days
Soft Order Code
VITB3
Synonyms
- Nicotinic Acid
- Niacin
Laboratory
Sendout
Reference Laboratory
Mayo VITB3
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in a lavender top tube. Centrifuge, aliquot plasma into a plastic within 2 hours of collection vial and send to Specimen Processing refrigerated .
Special Handling
Protect specimen from light within 15 minutes of collection. Stable 12 hours refrigerated, but spin and freeze for longer stability, and frozen is preferred for shipment to Mayo.
Alternate Specimen
K3 EDTA
Normal Volume
1.5 mL EDTA plasma
Minimum Volume
0.75 mL EDTA plasma
Storage Temperature
Refrigerated preferred, ambient or frozen acceptable
Additional Information
Test performed by Mayo Clinic Laboratories
Billing
CPT Code
84591
Fee Code
20160
NY State Approved
No