The presence of bilirubin in urine is usually associated with liver and gallbladder disease. A bilirubin in urine normal range does not possess any health risk but once grows out of control can be extremely fatal. There are two types of bilirubin in blood: unconjugated and conjugated bilirubin. The presence of ulcerative colitis can be the reason behind the increase in the level of conjugated Bilirubin in urine and blood stream. There is an inflammation formed and ulcers in the rectum and the large colon and there is no smooth stool passing. If there are high concentrations of conjugated bilirubin in the blood, the kidneys begin producing it and it enters the urine. The presence of bilirubin in the urine occurs mostly due to liver diseases and bile duct obstruction. Presence in urine. Conjugated Bilirubin: The conjugated bilirubin is normally not present in urine, but appears there in high plasma concentrations. Unconjugated Bilirubin: The unconjugated bilirubin is not present in urine. Toxicity. Conjugated Bilirubin: The conjugated bilirubin is not toxic to the tissues. Presence of the bile pigment bilirubin in the urine, called _____, is one of the first signs of liver disease or conditions that involve the liver. casts Cylinder-shaped elements with flat or rounded ends that are formed when protein from the breakdown of cells accumulates and precipitates in the kidney tubules and are washed into the urine are Thus the presence of bilirubin in urine will help identify subtle hepatobiliary dysfunction leading to conjugated hyperbilirubinemia, even when the measured concentration of conjugated bilirubin is serum is only slightly elevated. A bilirubin in urine test is only one measure of liver function. If your results are abnormal, your health care provider may order additional blood and urine tests, including a liver panel. A liver panel is a series of blood tests that measure various enzymes, proteins, and substances in the liver. When urine urobilinogen is low or absent in a person with urine bilirubin and/or signs of liver dysfunction, it can indicate the presence of hepatic or biliary obstruction. Bilirubin is derived from two main sources, and about 4 mg/kg body weight of bilirubin is produced daily 1) . Conjugated bilirubin is water-soluble so that it will appear in the urine. So the presence of bilirubin in urine indicates defects after conjugation and defects in excretion. Bilirubin is a yellowish pigment in the bile which is produced by the liver. Bilirubin in urine color urine = dark yellow or orange. Nursing Tip: Conjugated bilirubin is water soluble. If there is some sort of blockage of the bile ducts, excess conjugated bilirubin can be removed from the body through urine. This is why bilirubin is tested for in the standard urinalysis.blockage of the bile ducts. To learn more, view our Advanced Bladder Management course.
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