When there is kidney damage or kidney disease, and the kidneys are not able to filter waste efficiently, there will likely be a rise in creatinine levels in the blood. For adults with kidney disease, dialysis is recommended when creatinine levels reach 10.0 mg/dL.
The two types of gallstones are cholesterol stones and pigment stones. Cholesterol stones are usually yellow-green and are made primarily of hardened cholesterol. They account for about 80 percent of gallstones. Pigment stones are small, dark stones made of bilirubin.
Gallstones may number anywhere from one to hundreds, varying in size from a millimeter to four or five centimeters. When there are single or only a few gallstones they tend to be round. When larger numbers of gallstones are present they tend to be faceted due to the rubbing of one gallstone against another. Brown pigment gallstones may be crumbly and irregular.