---
title: "Giant Ragweed (Tall) W3 IgE Test: What It Measures"
description: "It measures IgE sensitization to giant ragweed pollen to support allergy evaluation, with convenient ordering and clear results through Vitals Vault/Quest."
canonical: "https://www.vitalsvault.com/biomarkers/giant-ragweed-tall-w3-ige"
last-updated: 2026-08-22
---

# Giant Ragweed (Tall) W3 IgE Test: What It Measures

> It measures IgE sensitization to giant ragweed pollen to support allergy evaluation, with convenient ordering and clear results through Vitals Vault/Quest.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/giant-ragweed-tall-w3-ige
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