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Direct Bilirubin
Aka: Direct Bilirubin, Conjugated Bilirubin, Conjugated Hyperbilirubinemia, Obstructive Jaundice
- See Also
- Total Bilirubin (Covers physiology)
- Unconjugated Bilirubin
- Jaundice
- Liver Function Test
- Liver Function Test Abnormality
- Lab: Normal
- <0.2 mg/dl
- Causes: Increased Conjugated Bilirubin in Adults
- Intrahepatic Causes
- Viral Hepatitis (Hepatitis A, Hepatitis B, Hepatitis C)
- Alcoholic Liver Disease (e.g. Alcoholic Hepatitis, Alcoholic Cirrhosis)
- Nonalcoholic Steatohepatitis (NASH)
- Wilson Disease
- Hemochromatosis
- Ischemic Hepatitis
- Hepatocellular Carcinoma
- Drug induced cholestasis
- Prolonged Total Parenteral Nutrition
- Sarcoidosis
- Pregnancy
- Primary Biliary Cirrhosis
- Primary Sclerosing Cholangitis
- Sepsis
- Extrahepatic Causes (esp. Biliary Tract Obstruction)
- Choledocolithiasis
- Biliary stricture
- Biliary atresia
- Cholelithiasis
- Cholangitis
- Chronic Pancreatitis
- Cryptosporidium infection (Immunocompromised patient)
- HIV Infection
- Cytomegalovirus infection
- Cholangiocarcinoma
- Pancreatic Cancer
- Lymphoma
- Post-operative changes (Whipple Procedure, Billroth Procedure)
- Causes: Increased Conjugated Bilirubin in Neonatal Patients
- Sepsis
- Intrauterine Viral Infections
- Neonatal hepatitis
- Intrahepatic and extrahepatic biliary atresia
- Biliary tract obstruction
- Choledochal cyst
- Abdominal mass
- Annular Pancreas
- Trisomy 18
- Galactosemia
- Tyrosinemia
- Hereditary
- Dubin-Johnson Syndrome
- Rotor's syndrome
- Hypermethioninemia
- Alpha-1 antitrypsin deficiency
- Cystic Fibrosis
- Following Hemolytic Disease of the Newborn syndrome
- Inspissated bile
- Hypopituitarism
- Hypothyroidism
- References
- Fargo (2017) Am Fam Physician 95(3): 164-8 [PubMed]
- Pasha (1996) Med Clin North Am 995-1019 [PubMed]