blood urea nitrogen

Blood Urea Nitrogen (BUN) measures the amount of nitrogen in your blood that comes from urea, a waste product formed when your body breaks down proteins. Urea is processed by your kidneys and excreted in urine. A BUN test helps assess how well your kidneys are functioning; high levels may indicate kidney impairment or dehydration, while low levels can suggest issues like liver disease or malnutrition. It’s a useful indicator in diagnosing and monitoring kidney health and overall metabolic balance.