rehnquist, served as associate justices before becoming chief justice. Many chief justices served in other branches of government before joining the Court: John Marshall and roger b. taney were cabinet members, edward d. white was a U.S. senator, and Earl Warren was governor of California.
Occasionally, a health practitioner will look at the ratio between a person's BUN and blood creatinine to help determine what is causing these concentrations to be higher than normal. The ratio of BUN to creatinine is usually between 10:1 and 20:1.An increased ratio may be due to a condition that causes a decrease in the flow of blood to the kidneys, such as congestive heart failure or dehydration.he ratio of BUN to creatinine is usually between 10:1 and 20:1. An increased ratio may be due to a condition that causes a decrease in the flow of blood to the kidneys, such as congestive heart failure or dehydration.
Quick Answer. Normal levels of blood urea nitrogen, or BUN, for adults and children range from 10 to 20 and 5 to 18 milligrams per deciliter, respectively, according to WebMD. For adult men and women, normal creatinine levels range between 0.7 to 1.3 and 0.6 to 1.1 milligrams per deciliter, respectively, according to Healthline. Keep Learning.