---
title: "Systemic Inflammation Response Index (SIRI): Formula"
description: "SIRI estimates systemic inflammation from your CBC immune cells and helps flag higher-risk patterns; order through Vitals Vault with Quest labs."
canonical: "https://www.vitalsvault.com/biomarkers/systemic-inflammation-response-index-siri"
last-updated: 2026-08-22
---

# Systemic Inflammation Response Index (SIRI): Formula

> SIRI estimates systemic inflammation from your CBC immune cells and helps flag higher-risk patterns; order through Vitals Vault with Quest labs.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/systemic-inflammation-response-index-siri
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