---
title: "ALT Test: What It Measures & What Results Mean"
description: "ALT measures liver-cell irritation or injury and helps guide next-step testing; order through Vitals Vault with Quest lab access and PocketMD support."
canonical: "https://www.vitalsvault.com/biomarkers/alt"
last-updated: 2026-08-22
---

# ALT Test: What It Measures & What Results Mean

> ALT measures liver-cell irritation or injury and helps guide next-step testing; order through Vitals Vault with Quest lab access and PocketMD support.

---

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