Test Mnemonic
B3VIT
CPT Codes
Aliases
Includes
- Nicotinic Acid (Niacin)
- Nicotinamide
- Nicotinuric Acid
Performing Laboratory
ARUP
Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 1 mL | Serum | No additive (Red) | | Frozen | Patient should fast for 4 hours prior to collection and avoid the use of vitamin supplements for 24 hours prior to collection. Protect specimen from light during storage and shipment. Separate serum from cells ASAP or within 2 hours of collection and freeze. Use amber transport tubes. |
Alternate Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 1 mL | Serum | SST (Gold) | | Frozen | Patient should fast for 4 hours prior to collection and avoid the use of vitamin supplements for 24 hours prior to collection. Protect specimen from light during storage and shipment. Separate serum from cells ASAP or within 2 hours of collection and freeze. Use amber transport tubes. |
| 1 mL | Plasma | Sodium or Lithium heparin (Green) | | Frozen | Patient should fast for 4 hours prior to collection and avoid the use of vitamin supplements for 24 hours prior to collection. Protect specimen from light during storage and shipment. Separate plasma from cells ASAP or within 2 hours of collection and freeze. Use amber transport tubes. |
| 1 mL | Plasma | Lithium heparin PST (Lt. Green) | | Frozen | Patient should fast for 4 hours prior to collection and avoid the use of vitamin supplements for 24 hours prior to collection. Protect specimen from light during storage and shipment. Separate plasma from cells ASAP or within 2 hours of collection and freeze. Use amber transport tubes. |
Minimum Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 0.3 mL | | | | | |
Stability
| Environmental Condition |
Description |
| Ambient | After separation from cells: 6 hours |
| Refrigerated | Unacceptable |
| Frozen | After separation from cells: 1 month |
Days Performed
Sun, Tue, Wed, Fri, Sat
Turnaround Time
2 - 6 days
Methodology
| Name |
Description |
| High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) | |
Reference Range
| Nicotinamide |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | | 88-400 nmol/L | |
| Nicotinic Acid |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | | Less than or equal to 80 nmol/L | |
| Nicotinuric Acid |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | | | | Less than or equal to 55 nmol/L | |
Special Info
Patient should fast for 4 hours and avoid the use of vitamin supplements for 24 hours prior to collection. Hemolyzed samples or samples collected in EDTA tubes are unacceptable.
