Translations:Advanced Field Epi:Manual 2 - Diagnostic Tests/61/en: Perbedaan revisi
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| − | * If the objective is ''to confirm a likely diagnosis'' (the "rule- | + | * If the objective is ''to confirm a likely diagnosis'' (the "rule-in" situation), then choose a test which has ''high specificity'' (~>95%) and at least moderate sensitivity (~>75%). If a positive result is returned, then it is highly likely the individual has the disease in question (PPV's are high for tests with high specificity). If a negative result is returned, then further diagnostic work up is required. |
* If the objective is to ''confirm that an individual is free from a particular disease'' (the "rule-out" situation), then choose a test with high sensitivity (~>95%) and at least moderate specificity (~>75%). If a negative result is returned, then it is highly likely the individual is free from the disease in question. If a positive result is returned, then further testing is required with more specific tests to ascertain whether or not the result was a false positive result or not. | * If the objective is to ''confirm that an individual is free from a particular disease'' (the "rule-out" situation), then choose a test with high sensitivity (~>95%) and at least moderate specificity (~>75%). If a negative result is returned, then it is highly likely the individual is free from the disease in question. If a positive result is returned, then further testing is required with more specific tests to ascertain whether or not the result was a false positive result or not. | ||
Revisi terkini pada 10 Mei 2015 14.26
- If the objective is to confirm a likely diagnosis (the "rule-in" situation), then choose a test which has high specificity (~>95%) and at least moderate sensitivity (~>75%). If a positive result is returned, then it is highly likely the individual has the disease in question (PPV's are high for tests with high specificity). If a negative result is returned, then further diagnostic work up is required.
- If the objective is to confirm that an individual is free from a particular disease (the "rule-out" situation), then choose a test with high sensitivity (~>95%) and at least moderate specificity (~>75%). If a negative result is returned, then it is highly likely the individual is free from the disease in question. If a positive result is returned, then further testing is required with more specific tests to ascertain whether or not the result was a false positive result or not.