Garnavillo, Iowa. Garnavillo is a city in Clayton County, Iowa, United States. The population was 745 at the 2010 census, down from 754 at the 2000 census.
Bilirubin is primarily a product of the breakdown of red blood cells by the liver. Elevated bilirubin in urine causes include a malfunction of the liver-resulting in the kidneys performing the filtration responsibilities and therefore causing the bilirubin to be removed through the urine.
Bilirubin is a yellowish pigment found in bile, a fluid made by the liver. This article discusses the laboratory test that is done to measure bilirubin in the blood. A small amount of older red blood cells are replaced by new blood cells every day. Bilirubin is left after these older blood cells are removed.