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Alias Names:Vitamin B3 / Nicotinic Acid
Methodology:High Performance Liquid Chromatography with Solid Phase Extraction (HPLC/SPE)
Edit Date:10/30/2008
Performed:Varies, one day each week
Released:2-8 days after setup at PeaceHealth Laboratories’ reference lab.
CPT Code:84425-90
Specimen Collection Details
Collection:Two 4 mL lavender top tubes (EDTA). Protect from light.
Handling:Centrifuge and separate plasma from cells and pour into a plastic vial within 15 minutes of collection. Protect from light during handling and transport. Freeze. Critical frozen.
Stability:30 days frozen. Specimen unstable ambient or refrigerated.
Standard Volume:2 mL plasma, light protected.
Minimum Volume:2 mL plasma, light protected.
Transport:Frozen on dry ice.
Rejection Criteria:Specimen other than frozen EDTA plasma; specimen not protected from light.
Reference Range:
0.50-8.45 µg/mL
Normal 0.50-8.45 µg/mL
Low <0.50 µg/mL
High >8.45 µg/mL