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9 Cards in this Set
- Front
- Back
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What is the risk factor for individuals and the community of a BSL-2 lab?
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Individual: Moderate risk
Community: Low risk |
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What is analytical sensitivity?
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What the lowest quantity of analyte (e.g., Ab, Ag, agent) that a test can detect
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What is diagnostic sensitivity?
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Ability of the test to correctly identify animals that are infected/diseased
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What is diagnostic specificity?
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Ability of the test to correctly identify animals that are NOT infected/diseased
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What is the positive predictive value (PPV)?
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*What is the probability that an animal is infected/diseased IF the test is positive?
*What percentage of animals that test positive are truly infected/diseased animals? |
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What is the negative predictive value (NPV)?
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* What is the probability that an animal is unaffected IF the test is negative?
* What percentage of animals that test negative are truly unaffected animals? True Negatives ÷ Total Negative Tests |
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Predictive Values can only be determined using what type of sample?
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Predictive Values can only be determined using a representative sample of patients.
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What factor has a big impact on predictive values (especially positive predictive values)?
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Predictive Values are affected by the PREVALENCE of disease
* Has big influence on positive predictive values - higher the prevalence the higher the positive predictive value |
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What is the difference between diagnostic sensitivity and diagnostic specificity?
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* Sensitivity: ability to correctly identify
infected/diseased animals * Specificity: ability to correctly identify uninfected/non-diseased animals |
