---
title: "Iodine, Serum/Plasma Lab Test Panel"
description: "Measures iodine in blood (serum or plasma). Iodine is an essential trace mineral required for thyroid hormone synthesis (T4 and T3)."
canonical: "https://www.vitalsvault.com/biomarkers/iodine-serum-plasma"
last-updated: 2026-08-22
---

# Iodine, Serum/Plasma Lab Test Panel

> Measures iodine in blood (serum or plasma). Iodine is an essential trace mineral required for thyroid hormone synthesis (T4 and T3).

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/iodine-serum-plasma
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