The CBIC Certified Infection Control Exam Study Guide (6th edition) emphasizes the importance of traceability in endoscope reprocessing programs to ensure rapid and accurate patient notification when reprocessing failures or recalls occur. The most effective method for identifying affected patients is maintaining a log that directly links each endoscope to specific patient identifiers for every procedure.

This type of tracking system allows infection preventionists to quickly determine exactly which patients were exposed to a particular endoscope during the time period of concern. When reprocessing failures are identified—such as incomplete cleaning, high-level disinfection errors, or equipment malfunction—precise linkage between the endoscope and the patient is essential to limit the scope of exposure investigations, reduce unnecessary notifications, and ensure timely follow-up care.

Option A is insufficient because a date-only log does not identify individual patients. Option C may be useful if serial numbers are consistently documented in the medical record, but this practice is not reliably implemented in many facilities and is therefore less dependable. Option D is overly broad and would identify all patients who underwent endoscopy, rather than those exposed to a specific device, leading to unnecessary alarm and inefficient investigations.

For CIC® exam purposes, understanding that patient-to-device linkage logs are the cornerstone of effective exposure investigation and recall management in endoscope reprocessing is critical and aligns with best-practice infection prevention standards.