Blood Urea Nitrogen
- Urea Blood Nitrogen
Protein is broken down first into amino acids, which are used by the body, resulting in the byproduct ammonia. The liver converts the waste product ammonia into urea, which is then removed by the kidneys as a component of urine. Any illness or disease affecting the kidneys will cause an increase in BUN levels in the blood. Liver disease, bleeding within the stomach or intestines, or even a very high protein diet can also cause BUN levels to increase. There are numerous medications that can affect BUN levels.
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