Vitamin B3 (Niacin and Metabolite) LabCorp
$405.00
LabCorp Test #: 070115; CPT: 84591
Disclaimer: Due to state regulations, Defy Medical does not offer on-demand lab testing in New York, New Jersey, Pennsylvania, Rhode Island, or Massachusetts.
This test measures the amount of niacin (Vitamin B3) and its breakdown products in your blood. It helps your doctor check if you have enough Vitamin B3, which is important for energy production and nerve function. Low levels can indicate a deficiency, while high levels might suggest other health issues.
| Symptoms | Cognitive decline, Dermatitis, Diarrhea, Fatigue, Neuropathy |
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