BUN

Also known as: Urea nitrogen; Urea

Formal name: Blood Urea Nitrogen

Related tests: Creatinine; Creatinine Clearance; eGFR; CMP; BMP; Urinalysis; Microalbumin

At a Glance

Why Get Tested?

To evaluate kidney function or monitor the effectiveness of and other treatments related to kidney disease or damage

When to Get Tested?

As part of a routine comprehensive or basic metabolic panel or when you are acutely or chronically ill with a condition that may cause or be worsened by kidney dysfunction

Sample Required?

A blood sample drawn from a vein in the arm

Test Preparation Needed?

None

This article was last reviewed on March 23, 2009. | This page was last modified on November 6, 2009.

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