Wednesday, April 18, 2012

Blood Urea Nitrogen BUN


BUN is a test that is done to show how well the kidneys and liver are working.
BUN test measures the amount of urea nitrogen. Urea is a chemical waste product that is in the blood. Kidneys that are functions well will remove urea and other wastes.
If the test show high levels of urea it might means that kidneys are not working well. If the levels are low it could mean liver disease or damage, or malnutrition.
The results of the test are measured in milligrams. The normal range for blood urea nitrogen is generally 7 to 20 mg/dL (2.5 to 7.1 mmol/L). 

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