Liver, Gallbladder, Pancreas Flashcards
Portal triad
Hepatic portal vein (80%)
Hepatic artery (20%)
Bile duct
Lymphatic vessel
Bridging fibrosis
Fibrous tissue made in response to inflammation. Fibrous strands link w liver
Labs for hepatocyte integrity
AST, ALT
Labs for biliary tract integrity
Alk phos (also in bones) GGT- specific for biliary tract
Hepatocytes function test
Serum albumin, serum ammonia, PT
Consequences of hepatic dysfunction: 12
Jaundice, cholestasis, hypoalbuminemia, hyperammonemia, hypoglycemia, fetor hepaticus, hypogonadism, gynecomastia, palmar erythema, spider angiomas, wt loss, muscle wasting
Hepatic portal hypertension in liver disease leads to: 5
Ascites, esophageal varicies, hemorrhoids, caput medusae, splenomegaly
Liver disease
Life threatening complic
6
Mult organ failure, coagulopathy, hepatic encephalopathy, hepatorenal syndrome, esophageal varicies rupture, hepatocellular carcinoma
Causes of jaundice 5
Excess bilirubin production, reduced hepatic uptake, impaired conjugation, decreased hepatocellular excretion, impaired bile flow
Which causes of jaundice result in increased unconjugated bill
Excess production, reduced uptake, imp conjugation
Process of increased unconjugated bilirubin
Insol in water, bound to albumin, not excreted in kidney. Unbound plasma fraction diffuses into tissue, produces toxic injury, inc in hemolytic dis of newborn, can cause neuro damage
What leads to inc in conjugated bilirubin
Decreased hepatocellular excretion, impaired bile flow
Process of inc conjugated bilirubin
Soluble in water, weakly bound to albumin, excreted by kidney. Dark urine.
Cholestasis
Hepatocytes get occlusion in bile duct, leads to hepatocyte death
Hepatic failure
% func lost
Special problems
80-90%
Hepatic encephalopathy and hepatorenal syndrome
Cirrhosis does what to liver and causes what
Imp BF thru it, hepatic portal htn. Leads to ascites, portosystemic shunts (varicies, hemorrhoids, medusae), splenomegaly