What should collectors do if they suspect invalid test results?

When collectors suspect that test results may be invalid, following the protocol for direct observation collection is crucial. This approach is aligned with maintaining the integrity of the testing process, as it ensures that any potential issues with the sample collection, handling, or testing are directly addressed. Direct observation allows for a transparent and accountable process, reducing the likelihood of errors or dishonest behavior that could affect the results.

By adhering to established protocols for direct observation, collectors can provide a more controlled environment for testing, which can help confirm the validity of the results in question. This step is vital not only for ensuring the accuracy of the individual test but also for upholding the overall credibility of the drug testing program. Following this protocol helps to maintain trust in the testing process both from the employees being tested and the organizations relying on the results.