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Epidemiology
Final Exam
16
Veterinary Medicine
Professional
09/10/2011

Additional Veterinary Medicine Flashcards

 


 

Cards

Term
Validity
Definition
=Accuracy
Ability of a test to Dx those who have dz & those that don't
Term
Reliability
Definition
Repeatability of tests
= Precision
Term
Screening tests
Definition
Tests applied to apparently healthy members of a pop to detect presence of dz
Term
Examples of screening tests
Definition
FAST for anti-Leishmania Ab in dogs w/o dz bitten by sandflies; DNA test to ID Persian cats w/ abn gene assoc w/ devo of polycystic kidney dz
Term
What are Dx tests used for?
Definition
confirm or classify dz status, provide a guide to selection of tx, or provide a px
Term
When are Dx tests used?
Definition
dz suspected; CS usu present
Term
What is the danger in identifying individuals as false positives?
Definition
Waste of $; unnecessary subjection to more sophisticated tests
Term
What is the danger in identifying individuals as false negatives?
Definition
Misdiagnosis of serious dz in early stages when still curable; virtual death sentence
Term
2 components of Validity
Definition
Sensitivity; Specificity
Term
Sensitivity
Definition
The proportion of subjects with dz that test positive; the likelihood of a positive test in a diseased animal
Term
Specificity
Definition
the proportion of subjects w/o dz that test negative
Term
PPV
Definition
proportion of subjects w/ (+) test results which have the dz
Term
NPV
Definition
proportion of subjects w/ (-) test results which don't have the dz
Term
What are the 3 general causes of biological disasters?
Definition
Natural, Accidental, Intentional
Term
What are the types of intentional/purposeful biological attacks?
Definition
Bioterrorism; Agroterrorism
Term
What is the most virulent naturally occurring non-emerging dz in the US w/ an animal reservoir?
Definition
Plague (Y. pestis)
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