The Opelousas Trail through Angelina County. The name of the trail and the route outside Angelina County is somewhat confused. Some say it was called the Beef Road (or Trail), but the Texas Highway Department map shown above calls it the Opelousas Trail.
The normal range for serum creatinine (in the blood) is usually between 0.6 and 1.3 milligrams per deciliter (mg/dL) although it varies between labs, between men and women, and by age.
Although the level of creatinine in the blood is a useful guide to kidney function, the eGFR is a more accurate measure. Blood creatinine can be used to estimate the eGFR using age, sex and race. This is often calculated by computer and reported with the creatinine blood test. The normal value for eGFR is 90-120 ml/min. high blood level of urea ('uraemia') indicates that the kidneys may not be working properly, or that you have a low body water content (are dehydrated). Creatinine is a waste product made by the muscles. Creatinine passes into the bloodstream, and is usually passed out in urine.