A nurse is told that a screening test has high specificity. Which of the following is the best inter-pretation of this information?
a. The test provides precise and consistent readings.
b. The test accurately identifies those with the condition or trait.
c. The test accurately identifies those with-out the trait.
d. The test has a high level of false positives.
ANS: C
Specificity refers to the test accurately identifying those without the trait. High specificity is needed when rescreening is impractical and when reduction of false positives is important. The test would have a low level of false positives.
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