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.
Thus, if your kidneys are malfunctioning, blood levels of creatinine will rise. With that said, measuring blood creatinine levels are a good surrogate for kidney function. Typical levels of creatinine in the blood range from 0.6 to 1.2 mg/dl in adult males and 0.5 to 1.1 mg/dl in adult females. Muscular adults may have more creatinine in their blood as a function of muscle mass, while elderly people often have lower levels. Creatinine levels in excess of 10 mg/dl in adults may be indicative of severe kidney impairment.