Blood Urea Nitrogen (BUN)
Urea is a waste product from protein metabolism. Kidneys filter urea from blood. High urea indicates either kidney problems or high protein intake.
Unit: mg/dL
High urea can indicate kidney disease, dehydration, high protein diet, GI bleeding, or heart failure. Usually evaluated together with creatinine.
Low urea may indicate malnutrition, liver disease, or overhydration. Not usually a concern on its own.
Disclaimer: Reference ranges may vary between laboratories. This is educational information, not medical advice. Upload your complete lab report in the GoDavaii app for AI-powered analysis in context of your health profile.
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