---
title: "Bilirubin Fractionated Test: Direct vs Indirect Bilirubin"
description: "It measures direct and indirect bilirubin to clarify liver and bile-duct patterns, with easy ordering and results support through Vitals Vault/Quest."
canonical: "https://www.vitalsvault.com/biomarkers/bilirubin-fractionated"
last-updated: 2026-08-22
---

# Bilirubin Fractionated Test: Direct vs Indirect Bilirubin

> It measures direct and indirect bilirubin to clarify liver and bile-duct patterns, with easy ordering and results support through Vitals Vault/Quest.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/bilirubin-fractionated
- [llms.txt](https://www.vitalsvault.com/llms.txt)
- [sitemap.xml](https://www.vitalsvault.com/sitemap.xml)
- [Developer portal](https://www.vitalsvault.com/developers)