Vitamin D, 25-Hydroxy
DHA Laboratory
Sample type: Serum
Requires fasting: No
Phlebotomy is required for this test
Details
This is a single-marker test measuring 25-hydroxy-vitamin D. This test is used for patients with low calcium levels, symptoms of vitamin D deficiency, or diseases that interfere with fat absorption, such as cystic fibrosis or Crohn's disease. This test also monitors the effectiveness of vitamin D, calcium, magnesium, or phosphorus supplementation.
- Vitamin D, 25-OH, Total
Estimated days for results: Results should arrive 7 business days after the lab receives samples.
7 business days
- You will not receive a kit for your blood draw.
- Your blood sample must be collected by a phlebotomist at a Labcorp Patient Service Center (PSC).
- No special preparation is needed.
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island
