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.
1 Aventurine may be green, blue or reddish-brown with a metallic iridescence; it is a stone of optimism, leadership and prosperity. 2  Blue Quartz is clear Quartz with tiny blue inclusions that create a pale to mid-blue color; it brings harmony and order, mental clarity and eases fear. Blue Quartz is clear Quartz with tiny blue inclusions that create a pale to mid-blue color; it brings harmony and order, mental clarity and eases fear. 2  Citrine is transparent and pale to golden yellow; it promotes imagination and magnifies the powers of personal will and manifestation.