---
title: "Anion Gap Test: What It Measures"
description: "An anion gap estimates unmeasured acids using electrolytes to assess metabolic acidosis; order through Vitals Vault with Quest labs and PocketMD support."
canonical: "https://www.vitalsvault.com/biomarkers/anion-gap"
last-updated: 2026-08-22
---

# Anion Gap Test: What It Measures

> An anion gap estimates unmeasured acids using electrolytes to assess metabolic acidosis; order through Vitals Vault with Quest labs and PocketMD support.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/anion-gap
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