---
title: "Apolipoprotein B (ApoB) Test: What It Measures"
description: "It measures the number of atherogenic lipoprotein particles linked to heart risk, with convenient Quest-based ordering and PocketMD support at Vitals."
canonical: "https://www.vitalsvault.com/biomarkers/apolipoprotein-b"
last-updated: 2026-08-22
---

# Apolipoprotein B (ApoB) Test: What It Measures

> It measures the number of atherogenic lipoprotein particles linked to heart risk, with convenient Quest-based ordering and PocketMD support at Vitals.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/apolipoprotein-b
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