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Niacin (Vitamin B3)

Order Name NIACIN
Test Number: 3657450
Revision Date 02/16/2021
Test Name Methodology LOINC Code
Niacin (Vitamin B3)
High Performance Liquid Chromatography 18244-4 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 4mL (1mL) Plasma EDTA (Lavender Top) Frozen
Instructions Protect from light. Transfer 4mL(1mL) EDTA plasma to an Light protected or Amber Transport Tube and freeze immediately. 
Unacceptable Conditions: Specimens not protected from light. Grossly hemolyzed or lipemic specimens. 
Stability: Ambient - 8 days; Refrigerated Unacceptable; Frozen 2 months.

?Test is not performed at ARUP. Separate specimens must be submitted when multiple tests are ordered.
GENERAL INFORMATION
Testing Schedule Varies 
Expected TAT 6-12 Days  
CPT Code(s) 84591
Lab Section Reference Lab