---
title: Vitamin D 25 Hydroxy Total Immunoassay Test
description: "It measures your 25(OH)D vitamin D status to assess deficiency or excess; order through Vitals Vault and test at a nearby Quest location."
canonical: "https://www.vitalsvault.com/biomarkers/vitamin-d-25-hydroxy-total-immunoassay"
last-updated: 2026-08-22
---

# Vitamin D 25 Hydroxy Total Immunoassay Test

> It measures your 25(OH)D vitamin D status to assess deficiency or excess; order through Vitals Vault and test at a nearby Quest location.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/vitamin-d-25-hydroxy-total-immunoassay
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