Who should be proficiency tested in their respective disciplines under ISO 17025?

The correct response highlights that personnel conducting technical reviews should be proficiency tested in their respective disciplines under ISO 17025. This standard emphasizes the importance of ensuring that individuals who are responsible for evaluating, interpreting, and making decisions based on test data possess the necessary skills and knowledge.

Proficiency testing for technical review personnel is crucial because these individuals play a key role in assessing the validity and reliability of testing results. They need a deep understanding of the technical aspects of the tests being performed, as their evaluations can directly impact the quality of laboratory outputs and the credibility of the laboratory itself.

While it may seem beneficial for all laboratory personnel to undergo proficiency testing, the standard specifically focuses on those with responsibilities that could affect the quality management system and the compliance of testing procedures. Management personnel and external auditors have different responsibilities that do not require the same level of technical proficiency in the testing processes, even though they are vital for the overall management and regulatory compliance of the laboratory. Consequently, the focus on technical reviewers ensures that proficiency testing is aligned with the critical functions necessary to maintain high standards in laboratory operations.