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11 Cards in this Set

  • Front
  • Back
What is prognosis?
prediction of how a patient's condition will progress
What things should be conveyed in a prognosis?
expected outcome
how long it will take to see the outcome
the likelihood of the expected outcome occurring
How is prognosis generated?
experience
published data
colleagues
What are some measures associated with prognosis?
case fatality
survival
What types of study designs are helpful to determine prognosis?
systematic reviews (hard to come by)
cohort studies
How much "loss to follow up" is acceptable?
generally less than 5%, possibly up to 10%
What factors of a study indicate it is suitable to help determine prognosis?
long enough study period
high percentage remained in the study
sufficient follow up
animals in the same stage of disease
patients similar to the one in question
What is screening?
identification of unrecognized disease in an apparently well animal
Is a screening test sufficient for diagnosis?
no, must be referred for diagnosis and treatment if IDed by the screening test
Why are screening tests important?
catch the disease early so you can treat it better, stop an outbreak, etc
What occurs if you can diagnose the disease better but cannot improve treatment?
false prolonging of the survival time may occur, because you know about the disease longer