Kidney Function Test Bun Creatinine. Blood urea nitrogen bun level is another indicator of kidney function. Kidney function test also known as renal function test is laboratory measurement of functional renal units.
What is a bun creatinine ratio test. Two laboratory blood tests that measure kidney function are creatinine and blood urea nitrogen or bun. A high blood level of creatinine indicates that the kidneys may not be working properly.
In males normal levels may vary slightly between labs.
What is a bun creatinine ratio test. Either test can be run on a blood sample or urine sample. Blood urea nitrogen bun level is another indicator of kidney function. When results of a creatinine test reveal excess amounts it could signify impaired kidney function or kidney disease.