Laboratory Quality Control Practice Test

Change control for updating QC methods requires a formal process that includes risk assessment, validation or verification, and documentation. The risk assessment identifies how the change could affect method performance and data integrity, guiding what testing is needed before use. Validation or verification then demonstrates that the updated method meets predefined acceptance criteria in the lab’s environment, ensuring reliable results under typical conditions. Documentation creates an auditable trail, capturing the rationale for the change, the exact updated procedure, version control, approvals, and training records, along with the validation/verification results. Together, these steps protect data quality and regulatory compliance.

Informal notes or updates without verification lack formal authorization and traceability, and simply notifying staff or making changes without proper validation does not provide the necessary assurances that the method will perform correctly.