Vitamin B3 (Niacin & Metabolites)

Specimen:

Test Code

YVITB3

Specimen Name

Vitamin B3 (Niacin & Metabolites)

Collect

1-Plain Red Top
Also acceptable SST, Na-Heparin, Lithium Heparin

Submit

1 mL (Min: 0.5 mL) Serum or Plasma Frozen

Special Handling

Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL of serum or plasma to a standard transport tube.

Rejection Criteria

Hemolyzed samples. Samples collected in EDTA tubes.

Stability

Ambient 6 hours; Refrigerated Unacceptable; Frozen 1 month

Methodology

Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry

Performed

Sunday/Tuesday/Wednesday/Friday/Saturday

Reported

2-7 days

CPT Codes

  • 84591

Components

Additional Information

Collect specimen after a 4-hour fast.

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT