---
title: "CA 27 29 Test: What It Measures & What Results Mean"
description: "CA 27 29 is a tumor marker mainly used to monitor treated breast cancer over time, with convenient ordering and clear results through Vitals Vault."
canonical: "https://www.vitalsvault.com/biomarkers/ca-27-29"
last-updated: 2026-08-22
---

# CA 27 29 Test: What It Measures & What Results Mean

> CA 27 29 is a tumor marker mainly used to monitor treated breast cancer over time, with convenient ordering and clear results through Vitals Vault.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/ca-27-29
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