The creatinine levels in both urine and blood are determined and compared. Normal creatinine clearance for healthy women is 88-128 mL/min. and 97 to 137 mL/min. in males (normal levels may vary slightly between labs). Blood urea nitrogen (BUN) level is another indicator of kidney function.he creatinine levels in both urine and blood are determined and compared. Normal creatinine clearance for healthy women is 88-128 mL/min. and 97 to 137 mL/min. in males (normal levels may vary slightly between labs). Blood urea nitrogen (BUN) level is another indicator of kidney function.
Some examples of blue stones include aquamarine, azurite, blue lace agate, boulder opal, chalcedony, lapis lazuli, sapphire, topaz and blue zircon. Shown below are pictures of some common and uncommon blue color stones.
Tumbled Stones Tumbled Stones are rocks that have been rounded, smoothed and polished in a rock tumbler. Fluorescent Minerals Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light. Geodes Geodes look like ordinary rocks on the outside but can be spectacular inside! Rock and Mineral Kits Rock, Mineral and Fossil Collections. Specimens for personal or classroom use. Lapis Lazuli Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.