Urinary bilirubin

When bilirubinuria is present the urine is usually a dark brown color. The presence of bilirubin in the urine is easily tested for by a test strip impregnated with a diazo reagent. This test is easy to perform at the bedside and is sensitive to bilirubin levels of 1 to 2 mmol/l (0.06-0.12 mg/100 ml). It can establish the presence of liver damage before frank jaundice is clinically apparent. In jaundiced patients, the absence of bilirubinuria usually implies that the hyperbilirubinemia is unconjugated and thus suggests a hemolytic cause (Table.. ...1).

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Sleep Apnea

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