Multiple choice question choose the right answer

3.Rapid antigen-based COVID-19 tests provide faster results than the gold standard PCR-based COVID-19 tests ; however, it is important to determine whether they have the same accuracy. Individuals experiencing COVID-19 symptoms were recruited to a study evaluating the rapid tests. The PCR-based test was used to diagnose true COVID-19 cases. Of those individuals with a confirmed COVID-19 diagnosis based on the PCR test, 72% were correctly identified as having COVID-19 using the rapid test. Of those individuals who did not have COVID-19 based on the PCR test, 99.5% were correctly identifed as not having COVID-19 using the rapid test. Which of the following statements is true about the performance of the rapid antigen test for COVID-19 ?

A) Positive Prediction Value (PPV)=0.72%; Negative Prediction Value Negative Prediction Value (NPV)=28%.

B) Positive Prediction Value (PPV)=0.72%; Negative Prediction Value Negative Prediction Value (NPV)=99.5%

C) Sensitivity=72%; False Negative Rate=28%.

D) Sensitivity=99.5%; False Negativity Rate=0.005%

E) Sensitivity=72%; false negative rate=0.005%.

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