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BUN Normal Range
Category: Kidney Function TestsAlso known as: blood urea nitrogen
What does it measure?
BUN measures the nitrogen portion of urea, a kidney-function marker.
Reference Range
7 - 20
mg/dL
Note: Reference ranges can vary slightly between different laboratories. Always refer to the range printed on your specific lab report.
Interpreting Results
↑High BUN
A high result can suggest reduced kidney function or dehydration.
Frequently Asked Questions
What is a normal BUN level?
A normal BUN level for most adults is 7–20 mg/dL. This is a general reference range, and your specific laboratory may use slightly different values.
What does high BUN mean?
A high BUN can suggest reduced kidney function or dehydration. Always talk to your doctor about what a high result means in your specific context.
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