JAUNDICE Flashcards
What does the liver produce?
Clotting factors, Bile acids, CHO - Glucose, Glycogen Proteins - Albumin Synthesis Lipids - Cholesterol, Lipoprotein, TG synthesis Hormones - Angiotensin, Insulin-LikeGF
What is the livers detoxifying role?
Urea production from ammonia
Detoxifying Drugs
Bilirubin metabolism
Breakdown of Insulin and hormones
What is the livers immune fx?
Combats infection
Clearing blood
Neutralising Drugs
What is the livers storage fx?
Stores Glycogen
Vit A, D, B12 and K
Cu and Fe
What do LFT’s test?
Bilrubin, Aminotransferases Alkaline Phosphotase Gamma GT Albumin Prothrombin time Creatinine Platelet count
What is Bilirubin?
Byproduct of heme metabolism from old RBC in spleen
Initially bound to albumin
In which condition is Bilirubin elevated prehepatically?
Heamolysis
In which condition is Bilirubin elevated hepatically?
Paraenchymal damage
In which condition is Bilirubin elevated posthepatically?
Obstruction
What are aminotransferases?
Enzymes in heaptocytes
What does raised ALT suggest?
There is paraenchymal involvement
What are the two main types of Aminotransferase and where are they?
Alanine transferase - Liver
Asparate Transamines - Liver, heart, muscle, kidney and pancreas
What is alkaline phosphotase?
Enzyme present in bile duct
When is ALP elevated?
Obstruction or liver infiltration
Other than the liver where else is ALP found?
Bones, placenta and Intestine