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.
The reference range for creatinine is 50 to 110 Î¼mol/L (0.8 - 1.4 mg/dl). Men tend to have higher levels of creatinine because they have more skeletal muscle than women. Serum creatinine is not affected by diet or activity level.eadlines: Creatinine is a breakdown product of creatine phosphate in muscle, and is usually produced at a fairly constant rate by the body (depending on muscle mass). It is filtered by the kidney. If the filtering of the kidney is deficient, blood levels rise.