Micronutrient, Vitamin B3
Quest Diagnostics
Sample type: Serum
Requires fasting: No
Phlebotomy required
Details
Vitamin B3 occurs naturally in plants and animals and is also added to many foods as a vitamin supplement.
- Vitamin B3 (Nicotinic Acid)
Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected
Vitamin B3
Vitamin B3, also known as Niacin, is an essential nutrient found naturally in plants and animals, and is often added to foods to ensure we get enough of it. This test measures the level of Vitamin B3 in the body to help identify deficiencies or to ensure that supplementation is effective.
What patients is this test right for?
What patients is this test right for?
This test may be recommended for individuals experiencing symptoms of Vitamin B3 deficiency or for those who are at risk.
Vitamin B3 Deficiency Symptoms:
- Weakness
- Digestive problems
- Skin issues
- Mood swings
What type of sample is required for this test?
1 mL frozen serum collected in a red-top tube (no gel), protected from light.
Proper collection is crucial for accurate results.
Proper collection is crucial for accurate results.
Test Resources:
Information on how to prepare for the test and understand the results may be limited. Consult with a healthcare provider for guidance and interpretation.
2–5 business days
≥18 years ≤110 ng/mL
Reference range not available for individuals <18 years for this micronutrient test.
Reference range not available for individuals <18 years for this micronutrient test.
Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:
Quest Diagnostics Patient Service Centers (PSC)
- Location: Visit a nearby Quest Diagnostics Patient Service Center.
- Cost: $10 sample collection fee (paid during lab order checkout).
- Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
- More Info: Quest Diagnostics blood draw guide
Getlabs Mobile Phlebotomy
- Location: Sample collection at your home or office.
- Cost: $85 sample collection fee (paid during lab order checkout).
- Availability: Available in most locations – enter your ZIP code during checkout to confirm.
- Scheduling: Schedule your appointment here through your Fullscript account.
- Collection Instructions:
- Have your digital or printed requisition form and valid ID ready.
- Your phlebotomist will contact you by phone to coordinate arrival.
- More Info: Getlabs blood draw guide
Specimen
- Preferred Specimen(s): 1 mL frozen serum collected in a red-top tube (no gel) - protected from light
- Alternative: NA
- Minimum Volume: 0.5 mL
- Collection Instructions: NA
Storage and shipping instructions
- Transport Container: Amber transport tube
- Transport Temperature: Frozen
- Specimen Stability:
- Frozen: 30 days
- Reject Criteria:
- Serum separator tube (SST)
Minimum age:
18
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island
