Low urea may be associated with low protein intake or increased fluid balance. It can be seen with overhydration or reduced protein metabolism.
Quick summary
Urea, often reported as BUN, reflects protein metabolism and kidney filtration of waste products.
Urea (BUN) reflects how the body processes protein and removes waste.
To evaluate kidney-related filtration of waste products.
This information is general and not a diagnosis.
Typical reference range: 7 - 20 mg/dL
Reference ranges may vary slightly by laboratory.
Low urea may be associated with low protein intake or increased fluid balance. It can be seen with overhydration or reduced protein metabolism.
A result within the reference range is generally considered typical. Interpretation depends on hydration and other lab values.
High urea may be associated with dehydration or reduced kidney filtration. It can be seen with high protein intake or certain medications.
These summaries are educational shorthand. Doctors still compare the full panel, symptoms, medicines, and the lab's own range.
Enter a valid number to see Low / Normal / High.
This check is for quick educational context only. It is not stored as a medical record and does not replace clinical interpretation.
Low urea may be associated with low protein intake or increased fluid balance. It can be seen with overhydration or reduced protein metabolism. It is not a diagnosis by itself.
A result within the reference range is generally considered typical. Interpretation depends on hydration and other lab values.
High urea may be associated with dehydration or reduced kidney filtration. It can be seen with high protein intake or certain medications. It is not a diagnosis by itself.
These are common associations, not diagnoses. Many factors can affect a single result.
A single result rarely provides the full picture on its own.
BUN is a common blood measurement of urea nitrogen and is often used interchangeably with urea in lab reports.
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Theme hubs are useful when this result makes more sense as part of a liver, lipid, blood-cell, iron, or kidney-style pattern. If you have several numbers from the same group, you can enter them together there.
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Open the blood test library for related markers, or use the guide if you want a calmer overview of how results are usually reviewed together.
This website provides general health information for educational purposes only.
It is not intended as medical advice, diagnosis, or treatment.
If you have symptoms or concerns, consult a qualified healthcare professional.