Urea

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Also known as: Blood urea nitrogen; BUN
Formal name: Urea
Related tests: Creatinine

At a Glance

Why Get Tested?

To evaluate kidney function and monitor the effectiveness of dialysis

When to Get Tested?

If you have non-specific symptoms that may indicate a kidney problem

Sample Required?

A blood sample drawn from a vein in the arm

The Test Sample

What is being tested?

Urea is produced when protein is broken down by the body. Healthy kidneys eliminate more than 90% of the urea the body produces, so blood levels indicate how well your kidneys are working.

How is the sample collected for testing?

A blood sample is drawn from a vein in the arm.

Is any test preparation needed to ensure the quality of the sample?

No test preparation is needed.

The Test

Common Questions

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