

The normal range for BUN/Creatinine ratio is anywhere between 5 – 20 mg/dL.īUN/Creatinine ratio increases with age, and with decreasing muscle mass. That’s why the BUN/Creatinine ratio can be used to check for issues such as dehydration, kidney injury/disease, gut bleeding, and other problems. So to recap, BUN levels fluctuate, while creatinine is removed at a constant rate and its blood levels are usually stable. That is why blood levels are usually a good indicator of how well your kidneys are working. Ĭreatinine is removed from the body by the kidneys, which filter almost all of it from the blood into the urine, at a fairly constant rate. Creatinine production essentially reflects muscle mass, and because this mass changes little from day to day, creatinine production tends to be fairly constant. It is produced from creatine, a protein that helps generate energy for muscle contractions. Ĭreatinine, on the other hand, is a waste product created from the normal wear and tear of muscles. High urea is an important marker of kidney dysfunction as well. The kidneys can return different amounts of urea into the bloodstream depending on factors such as hydration and blood pressure. Urea is removed by the kidneys, but the rate of removal depends on the needs of the body.
#ELEVATED CREATININE NORMAL BUN FULL#
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