---
title: "Rat E87 IgE Test: What It Measures & What Results Mean"
description: "It measures IgE antibodies to rat allergen (E87) to assess sensitization; order through Vitals Vault and test at a Quest draw site."
canonical: "https://www.vitalsvault.com/biomarkers/rat-e87-ige"
last-updated: 2026-08-22
---

# Rat E87 IgE Test: What It Measures & What Results Mean

> It measures IgE antibodies to rat allergen (E87) to assess sensitization; order through Vitals Vault and test at a Quest draw site.

---

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