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VITAMIN B3 (NIACIN)
Number 634
CPT Code 84591
Alias VITAMIN B3, NICOTINAMIDE, NICOTINIC ACID
Specimen Container Red Top
Specimen Type Serum
Turn Around Time 
Days Performed 
Reference Range Contact Laboratory
Alternate Specimen Lavender top EDTA
Volume 1 mL Serum
Stability Ambient Unstable
Stability Refrigerated Unstable
Stability Frozen 14 Days
Patient Preparation 
Methodology 

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Limitations 
Rejection Criteria 

Gel-barrier tube; specimen not frozen

Additional Instructions 
Performing Laboratory Reference Laboratory
TagsNIACIN, VITAMIN, B3

COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

Read More