exam and investigations Flashcards
Jaundice Inspection (11)?
Icteric, Jaundiced, cachectic (malignancy), scratch marks (pruritis), needle track marks, spider nevi, palmar erythema clubbing bruising or gynaecomastia (chronic liver disease), bronzed tan (haemochromatosis) Kayser-Fleischer rings (Wilsons).
Jaundice Palpation findings and causes (5)?
Hepatomegaly (malignancy or acute hepatitis),
splenomegaly (extravascular haemolysis),
RUQ tenderness (acute hepatitis or gallbladder disease),
ascites (chronic liver disease),
palpable lymphadenopathy (malignancy).
Jaundice Bloods flow chart
Jaundice investigations FBC and reticulocytes?
low RBC count with a high reticulocyte count suggests increased RBC turnover consistent with haemolysis or recent bleed.
Low RBC volume (microcytosis) would be consistent with thalassaemia.
Jaundice investigations seum bilirubin levels?
if conjugated is >20% of bilirubin, suggests the problem is obstruction to bile flow.
Jaundice investigations liver enzymes?
if AST and ALT are raised, theres damage to hepatocytes. AST>ALT suggests excessive alcohol intake, ALT>AST suggests viral hepatitis.
Jaundice investigations ALP and GGT?
ALP is released from damaged biliary epithelial cells. GGT is expressed from biliary epithelial cells. So these raised means bile duct pathology.
Jaundice investigations serum amylase or lipase?
pancreatic pathology (pancreatitis).
Jaundice investigations urinalysis?
bilirubin in urine is posthepatic obstruction.
Jaundice investigations haemolysis screen?
checks haptoglobins, lactate dehydrogenase, a direct antiglobin test, a blood film.
Jaundice investigations viral screen?
Hep A B C, EBV, CMV and HIV.
Jaundice investigations congenital screen?
haemochromatosis and wilsons disease.
Jaundice investigations abdominal USS?
will show liver cirrhosis or liver carcinoma, shows dilation of CBD or mechanical obstruction.
Gilberts syndrome?
normally a diagnosis of exclusion. Affests 3-8% of Caucasian people that results in the liver not being able to conjugate bilirubin at an adequate rate in times of physiological stress.
Management of PBC
immunosuppression, bile salt replacement, fat-soluble vitamin replacement, pruritus management.