Exam 3 - Pancreatitis Flashcards
what is more common - acute or chronic pancreatitis?
chronic pancreatitis
what are some challenges for diagnosing pancreatitis on ultrasound in regards to sensitivity?
sensitivity is largely operator dependent!!!!!
sensitivity is lower with less severe disease & limited operator skill
what are some challenges for diagnosing pancreatitis on ultrasound in regards to specificity?
specificity is limited by other conditions being associated with similar changes - hyperplastic nodules on the pancreas, pancreatic edema, & peritoneal effusion
what are some possible ultrasound findings for a patient with pancreatitis?
enlargement of the organ
fluid around the pancreas
echogenicity changes of the pancreas - if decreased, necrosis & if increased, peripancreatic fat necrosis
dilation of the pancreatic duct
what are 4 components that make up the challenges encountered in using ultrasound to diagnose pancreatitis?
severity of disease
quality of the equipment used
level of suspicion
skill of the operator
T/F: MRI is used for routine diagnosis of pancreatitis
false
what is the best diagnostic imaging used in humans for diagnosing pancreatitis? is it the same in companion animals?
ct in humans
no - the organ is so small, CT isn’t too great
the CBC & chemistry on a pancreatitis patient will have a variety of changes observed & none of which are specific for pancreatitis - why is it still important to run?
you need to evaluate the patient for systemic complications!!!
is serum amylase activity useful in diagnosing pancreatitis in dogs & cats? why?
no - can be elevated in some dogs with pancreatitis but rarely in cats, can also be elevated in dogs with non-pancreatic conditions
low sensitivity & specificity
T/F: most point of care analyzers for lipase activity are based on dry chemistry
true
what is the most specific assay used for the measurement of pancreatic lipase?
spec cPL
is serum lipase activity useful for diagnosing a dog or cat with pancreatitis? why?
NO - none of the substrates are truly specific for pancreatic lipase/pancreatitis
depends on the substrate elevated in dogs/cats with spontaneous pancreatitis
limited diagnostic value in dogs & cats - sensitivity/specificity are dependent on the substrate & cut-off values
what is the most sensitive & specific test available for canine/feline pancreatitis?
canine pancreatic lipase immunoreactivity - cPLI, both spec & SNAP tests
feline pancreatic lipase immunoreactivity - fPLI, both spec & SNAP tests
what does a negative SNAP cPLI/fPLI tell you?
rules out pancreatitis
what does it mean if you have a patient that has a positive cPLI/fPLI SNAP test? what should you do next?
need to run a spec cPL/fPL to confirm your diagnosis & to get a baseline value for monitoring