---
title: "Prolactin Total and Monomeric Test: What It Measures"
description: "It measures total prolactin and the active monomeric fraction to clarify true hyperprolactinemia, with easy ordering and Quest-based labs via Vitals Vault."
canonical: "https://www.vitalsvault.com/biomarkers/prolactin-total-and-monomeric"
last-updated: 2026-08-22
---

# Prolactin Total and Monomeric Test: What It Measures

> It measures total prolactin and the active monomeric fraction to clarify true hyperprolactinemia, with easy ordering and Quest-based labs via Vitals Vault.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/prolactin-total-and-monomeric
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