Grays Peak and Torreys Peak - 8.35 Miles Round-Trip. Grays Peak (14,270') and Torreys Peak (14,267') are the two highest points along the Continental Divide, and considered among the most accessible fourteeners in Colorado. The summits are connected by a .8 mile long saddle, making both attainable in a day with an early start.
BUN â Blood urea nitrogen. 1  Purpose: To detect elevated waste levels in the bloodstream, which is an early sign of reduced kidney function. 2  Normal range: 7 to 20 milligrams per deciliter (mg/dl). 3  How this test is conducted: A blood sample is taken and sent for analysis.
Persistently high levels of creatinine indicate that the kidneys may not be functioning properly. The normal range of creatinine in blood is: 0.6 to 1.2 mg/dL (or 53 to 106 mcmol/L) for males, and. 0.5 to 1.1 mg/dL (or 44 to 97 mcmol/L) for females.