---
title: "BUN/Creatinine Ratio Test: What It Measures"
description: "It estimates hydration and kidney blood flow by comparing BUN to creatinine, with easy ordering and clear next steps through Vitals Vault/Quest."
canonical: "https://www.vitalsvault.com/biomarkers/bun-creatinine-ratio"
last-updated: 2026-08-22
---

# BUN/Creatinine Ratio Test: What It Measures

> It estimates hydration and kidney blood flow by comparing BUN to creatinine, with easy ordering and clear next steps through Vitals Vault/Quest.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/bun-creatinine-ratio
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