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Jaundice is commonly associated with severity of disease with an incidence of up to 40% of patients requiring intensive care in ICU experiencing jaundice. [48] The causes of jaundice in the intensive care setting is both due to jaundice as the primary reason for ICU stay or as a morbidity to an underlying disease (i.e. sepsis). [48]
Clinical jaundice appearing in the first 24 hours or greater than 14 days of life. Increases in the level of total bilirubin by more than 8.5 μmol/L (0.5 mg/dL) per hour or (85 μmol/L) 5 mg/dL per 24 hours. Total bilirubin more than 331.5 μmol/L (19.5 mg/dL) (hyperbilirubinemia). Direct bilirubin more than 34 μmol/L (2.0 mg/dL).
Serum tests evaluate plasma bilirubin, haemolysis and liver function and are essential for definitive diagnosis. When total serum bilirubin exceeds 2.5 mg/dL and unconjugated bilirubin occupies >85% of total amount, it is classified as unconjugated hyperbilirubinemia. [6]
Bilirubin (BR) (from the Latin for "red bile") is a red-orange compound that occurs in the normal catabolic pathway that breaks down heme in vertebrates.This catabolism is a necessary process in the body's clearance of waste products that arise from the destruction of aged or abnormal red blood cells. [3]
Hemolytic jaundice, also known as prehepatic jaundice, is a type of jaundice arising from hemolysis or excessive destruction of red blood cells, ...
Hy's law is a rule of thumb that a patient is at high risk of a fatal drug-induced liver injury if given a medication that causes hepatocellular injury (not Hepatobiliary injury) with jaundice. [1] The law is based on observations by Hy Zimmerman, a major scholar of drug-induced liver injury.
When total bilirubin levels exceed 40 μmol/L, bilirubin deposition at the sclera, skin, and mucous membranes will give these areas a yellow colour, thus it is called jaundice. [6] The increase in predominantly unconjugated bilirubin is due to overproduction, reduced hepatic uptake of the unconjugated bilirubin and reduced conjugation of bilirubin.
Rotor type hyperbilirubinemia is a distinct yet similar disorder to Dubin–Johnson syndrome [1] – both diseases cause an increase in conjugated bilirubin, but Rotor syndrome differs in that it is a result of impaired hepatocellular storage of conjugated bilirubin that leaks into plasma causing hyperbilirubinemia.