Session 6- Jaundice Flashcards
what is jaundice
a clinical sign where you have yellow sclera/ skin
what does the spleen break heam into
globin which is used to draw out amino acids
haem- converted to biliverdin -> bilirubin
where is bilirubin conjugated
liver
how is bilirubin excreted once it is conjugated
duodenum- stercobilin (pigmented part of faeces)
kidney- urobilinogen- urinary system -> urine
what causes pre-hepatic jaundice
haemolysis
haemoglobinopathis
what is pre-hepatic jaundice
- too much haem
- increased bilirubin usually unconjugated as the liver cant conjugate all of it theres too much
what is hepatic jaundice
reduced hepatocyte function but some are still working therefore we have some conjugated and some unconjugated bilirubin
causes of hepatic jaundice
chronic liver damage
acute liver damage
what causes post hepatic jandice
obstruction to the bile duct
- gall stones
- pancreatic carcinoma (head of pancreas)
- biliary stricture
how does post-hepatic jaundice present and why
pale stool and dark urine. The bilirubin cant be excreted in stool due to the blockage so it is excreted in urine