Answer by
ckell3 (100)
The BUN/creatinine ratio is the ratio of the blood urea nitrogen (BUN) and the serum creatinine. The BUN in a measure of the amount of nitrogen in the blood in the form of urea. This is an indication of renal (kidney) function as urea is removed by the kidneys. Low BUN/creatinine levels may indicate normal or intrarenal diesase.