Blood Urea / BUN
Urea is a natural byproduct of dietary protein breakdown, filtered out of the bloodstream by the kidneys.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
0.15 – 0.45 g/L
0.15 – 0.4 g/L
0.15 – 0.45 g/L
What does a low result mean?
A low urea level is commonly seen with modest protein intake (such as vegetarian diets) or very generous fluid consumption.
What does a high result mean?
A mild elevation is very often caused by transient mild dehydration or a high-protein dinner the preceding evening.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Could this result stem from simply needing to drink more water?
- Does my creatinine confirm healthy underlying kidney function?
- Should I adjust my daily hydration schedule?
Do you have a full blood test report?
Upload your lab document (PDF or image) to get an instant, clear explanation for every biomarker at once.
Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.