---
title: "Myeloperoxidase (MPO) Test: What It Measures"
description: "It measures MPO, an inflammation-related enzyme linked to plaque activity and heart risk, with convenient ordering and Quest lab access via Vitals Vault."
canonical: "https://www.vitalsvault.com/biomarkers/cardio-iq-myeloperoxidase-mpo"
last-updated: 2026-08-22
---

# Myeloperoxidase (MPO) Test: What It Measures

> It measures MPO, an inflammation-related enzyme linked to plaque activity and heart risk, with convenient ordering and Quest lab access via Vitals Vault.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/cardio-iq-myeloperoxidase-mpo
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