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HelpTest ID BLOD0218 Vitamin B3 and Metabolites, Plasma
Useful For
Assisting in the diagnosis of suspected vitamin B3 deficiency or toxicity
May be useful in determining response to therapy
Specimen Type
Plasma EDTASpecimen Required
Patient Preparation: Fasting 4 to 8 hours preferred
Supplies: Sarstedt Aliquot Tube 5 mL (T914)
Collection Container/Tube:
Preferred: Lavender top (K2 EDTA)
Acceptable: K3 EDTA
Submission Container/Tube: Plastic vial
Specimen Volume: 1.5 mL
Collection Instructions: Centrifuge and aliquot plasma into a plastic vial within 2 hours of collection.
Specimen Minimum Volume
0.75 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma EDTA | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 21 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | OK |
Day(s) Performed
Monday, Tuesday, Thursday, Friday
Report Available
2 to 4 daysMethod Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Reporting Name
Vitamin B3 and Metabolites, PPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Secondary ID
604987CPT Code Information
84591
Reference Values
Nicotinic Acid (Niacin) Cutoff: <5.0 ng/mL
Nicotinamide: 5.0-48.0 ng/mL
Nicotinuric Acid Cutoff: <5.0 ng/mL
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.
Sanford Laboratories - Sioux Falls/Rapid City Additional Information:
SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 15944 | NICOTINIC ACID (NIACIN) |
| 15945 | NICOTINAMIDE |
| 28236 | NICOTINURIC ACID |