Service Description

The Vitamin D 25-Hydroxy test measures the storage form of vitamin D in the blood, which is the best indicator of overall vitamin D status and is essential for bone health, immune function, and calcium balance. Why it’s done: To detect vitamin D deficiency or insufficiency To evaluate bone health and risk of osteoporosis or fractures To monitor immune function and chronic disease risk To guide dietary supplementation or treatment To assess overall nutritional status Specimen Type: Blood (serum or plasma) Turnaround Time: Typically 1–3 business days Collection Available: In-office or mobile blood draw services