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Niacin (Vitamin B3)
MessagePatient Preparation: Fasting 4 to 8 hours preferredCollect a full tube, following standard venipuncture techniques.
Test Code
LAB1109 VITB3
Alias/See Also
VITB3
CPT Codes
84591
Includes
@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@
Instructions
Processing Instructions (Lab use only): Centrifuge and aliquot plasma into a plastic vial within 2 hours of collection.Minimum Testing Volume: 0.75 mL Plasma Transport Temperature: Refrigerated Stability: Ambient: 21 daysRefrigerated : 28 daysFrozen: 28 days Causes for Rejection: Gross hemolysis
Report Available
5-Days
Clinical Significance
1230170157
Last Updated: May 18, 2026