Social & Preventive Medicine If two screening tests are used in parallel, then we have A Decrease Positive Predictive Value(PPV) and Increase Negative Predictive Value(NPV) B Increase NPV and Decrease PPV C Increase PPV and Increase NPV D Decrease PPV and Decrease NPV 💡 Explanation If two screening tests are used in parallel, then we have ✓ Correct Answer: A. Decrease Positive Predictive Value(PPV) and Increase Negative Predictive Value(NPV)