---
title: "Red Blood Cell (RBC) Count Test: What It Measures"
description: "It measures how many oxygen-carrying red blood cells you have, and Vitals Vault lets you order through Quest and review results with PocketMD."
canonical: "https://www.vitalsvault.com/biomarkers/red-blood-cell-count"
last-updated: 2026-08-22
---

# Red Blood Cell (RBC) Count Test: What It Measures

> It measures how many oxygen-carrying red blood cells you have, and Vitals Vault lets you order through Quest and review results with PocketMD.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/red-blood-cell-count
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