What does it mean if bun creatinine ratio is low?

Alka Goyal

New Member
Low BUN levels are not common and are not usually a cause for concern. They may be seen in severe liver disease, malnutrition, and sometimes when a person is overhydrated (too much fluid volume), but the BUN test is not usually used to diagnose or monitor these conditions.
 
BUN or Blood urea nitrogen level is another indicator of kidney function. This test measures the amount of nitrogen in the blood that generates from the waste product urea. The BUN-to-creatinine ratio particularly provides more detailed information about kidney function and numerous underlying causes compared with creatinine level alone. A low BUN to creatinine ratio refers to a large amount of excretion of wastes from the body. Liver damage or disease can lower the BUN level in your body. A low BUN level can usually occur in the second or in the third trimester of pregnancy.
 

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