Vitamin D (25OH D2 & D3)
Doctor's Data
Sample type: Serum
Requires fasting: No
Phlebotomy is required for this test
Details
Vitamin D is an essential nutrient for human health, occurring in two forms - D3, which comes from animal sources and sun exposure, and D2, which comes from vegetable sources. Doctor's Data uses the LC/MS QQQ method to measure Vitamin D2, D3, and total Vitamin D.
- 25-hydroxyvitamin D
- 25-Hydroxy Vitamin D2
- 25-Hydroxy Vitamin D3
Estimated days for results: Results should arrive 8 business days after the lab receives samples.
8 business days
Avoid the following medications for 72 hours before your blood draw. DO NOT discontinue any prescription medications without first consulting your healthcare provider.
- Non-essential medications
- Dietary supplements (especially those containing biotin)
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island
