Biliary disease Flashcards
Hepatocellular pattern
Transaminase (AST and/or ALT)
usually when you have an elevation of ALT or AST you also have an elevation of ______ as well
bilirubin
MC Type of pattern you’ll see
transaminase dominant
upper limit of normal AST ALT
40Normally b/w 15 and 20
fatty infiltration into liver that results in mild elevation of transaminases
fatty liver disease other liver function tests should be normal
chronic hep b and C you see
asymptomatic pt screen with ALT transaminase level and look for elevation
medications that can elevate transaminases
(Tylenol, Rifampin, INH, Antifungals, Methotrexate, NSAIDS), Herbal drugs, occupational toxinsusually anything that utilizes the CYP450 system
uncommon etiologies for pts with transaminase predominant panel
Hemochromatosis (iron OVER) Autoimmune Hepatitis Alpha-1-AT deficiency Wilson’s Disease (COPPER)Unknown causes
Autoimmune Hepatitis can be diagnosed with
circulating autoantibodies and high serum globulin
” Alpha-1-AT deficiency is seen in what population
deficiency (rare; neonatal hepatitis)
” Wilson’s Disease is due to
rare; copper accumulation due to abnormal biliary copper transport
AST predominant ratio
ETOH-related hepatitis, cirrhosis due to viral hepatitis, Wilson dz
ALT predominant
usually all other casues of liver dz (not alcohol) drug-induced liver, chronic viral hepatitis (B&C), occupational, toxin related hepatocellular damage, autoimmune hepatitis, Wilson’s, Hemochromatosis, Alpha-1-AT deficiency, congestive hepatopathy, Malignant infiltration of the liver
you want to confirm the elevation of transaminases for at least how long
> 3mo
AST>ALT
- AST>ALT consistent w/ ETOH (rarely >300)
ALT>AST consistent
consistent w/ viral (values often >500 greater than hepititis
correlative factors with elevated transaminases
Correct reversible factors: obesity, ETOH, drugs, thyroid, celiac dz
mild elevation recommendations
abstain from alcohol and medication recheck in 2 months
what to do if you suspect if suspect fatty liver, splenomegaly, or tumor/mass
ULS- can see fatty infiltration right upper quadrant also done with biliary tract dz
what to do if it looks like they have hep c
Hepatitis panel (A, B, C)
elevated hematocrit or signs and symptoms of hemachromatosis
Ferritin, Fe/TIBC
what to do if you suspect Wilsons
Copper & ceruloplasmin in young patients
when would you do a liver biopsy
if no other source can be ascertained
primarily alk phos is made
in liver and bones