---
title: "Sodium Test: What It Measures & What Results Mean"
description: "A sodium test measures blood sodium to assess hydration and electrolyte balance, with convenient Quest lab ordering and PocketMD guidance at Vitals Vault."
canonical: "https://www.vitalsvault.com/biomarkers/sodium"
last-updated: 2026-08-22
---

# Sodium Test: What It Measures & What Results Mean

> A sodium test measures blood sodium to assess hydration and electrolyte balance, with convenient Quest lab ordering and PocketMD guidance at Vitals Vault.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/sodium
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