Niacin (Vitamin B3)
Label Mnemonic: NIACIN
Epic Lab Code: LAB3711
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
Whole Blood
Collection Medium:
Pink top tube 6 mL (K2-EDTA) Pink top tube 6 mL (K2-EDTA)
Preferred Minimum: 4 mL plasma
Absolute Minimum: 1 mL plasma
Rejection Criteria:
Thawed specimens or specimens not protected from light. Grossly hemolyzed or lipemic specimens.
Delivery Instructions:
Wrap specimen in aluminum foil to protect from light. Place in ice immediately after collection. Deliver to laboratory immediately after collection.
Turn Around Time:
5-11 days upon receipt at reference laboratory.
Reference Range:
By report
Protect specimen from light.

Specimen must be delivered to Specimen Control so that it can be frozen within 15 minutes of time of collection.
Quantitative High Performance Liquid Chromatography
CPT Code:
See Additional Information:
Specimens Requiring Immediate Delivery