Several factors can influence the NPV of a toxicological test:
Sensitivity and Specificity: High sensitivity reduces the number of false negatives, thereby increasing NPV. Similarly, high specificity ensures that true negatives are accurately identified. Test Design: The quality and design of the test itself, including its ability to detect specific toxins at low concentrations, can affect NPV. Analytical Techniques: Advanced analytical techniques such as mass spectrometry can enhance test accuracy, thereby improving NPV. Sample Handling: Proper sample handling and storage are crucial to avoid degradation or contamination, which can lead to false results.
