Podcast
Questions and Answers
What coloration of urine is characteristic of bilirubinuria?
What coloration of urine is characteristic of bilirubinuria?
- Clear and colorless
- Dark brown to black
- Yellow-brown to greenish brown (correct)
- Pale yellow to straw-colored
Which finding indicates a positive test for urinary bilirubin?
Which finding indicates a positive test for urinary bilirubin?
- Consistently normal bilirubin levels in serum
- Absence of bilirubin and presence of urobilinogen
- Presence of bilirubin with absence of urobilinogen (correct)
- Presence of urobilinogen with normal urine color
What condition is indicated by acholic stools?
What condition is indicated by acholic stools?
- Pancreatic insufficiency leading to malabsorption
- Excessive consumption of bile acids
- Intrahepatic or extrahepatic biliary obstruction (correct)
- Increased hemolysis and bilirubin production
In the differential diagnosis of jaundice, bilirubinuria is specifically not found in which type?
In the differential diagnosis of jaundice, bilirubinuria is specifically not found in which type?
What symptom accompanies jaundice in the presence of bilirubinuria?
What symptom accompanies jaundice in the presence of bilirubinuria?
Flashcards
Bilirubinuria
Bilirubinuria
Yellow-brown to greenish-brown urine with yellow foam, elevated serum conjugated bilirubin, jaundice, and pale-colored feces.
Acholic stools
Acholic stools
Feces that lack bilirubin-derived pigment, appearing pale in color.
Intrahepatic or extrahepatic biliary obstruction
Intrahepatic or extrahepatic biliary obstruction
A condition where the flow of bile is blocked, either inside the liver or outside.
Hemolytic jaundice
Hemolytic jaundice
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Bilirubinuria and negative urobilinogen test
Bilirubinuria and negative urobilinogen test
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Study Notes
Bilirubinuria: Characteristics and Diagnosis
- Bilirubinuria causes urine to be yellow-brown to greenish-brown, potentially with a yellow foam.
- Elevated serum conjugated bilirubin and jaundice are also present.
- Pale-colored (acholic) stools result from the absence of bilirubin-derived pigments.
- A positive urinary bilirubin test and a negative urobilinogen test indicate either intrahepatic or extrahepatic biliary obstruction.
- This test helps differentiate jaundice types, as bilirubinuria is absent in hemolytic jaundice.
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