Epic ASAP Practice Test

An audit trail records who did what in the system and when, with details like the user, the action, the patient data involved, and the time. This traceability is essential because it creates an accountable history of every access and change, which supports security, accountability, and regulatory compliance. If a PHI record is viewed or modified, the audit trail shows exactly which user did it, from where, and when, making it possible to detect unauthorized access, investigate incidents, and demonstrate to auditors that access controls and data handling are being followed. It also helps with protecting data integrity by ensuring changes are trackable and attributable, which is important for legal discovery and ongoing governance. Other options describe features unrelated to tracking user activity for security and compliance, such as storing demographics for billing, generating discharge summaries, or logging only system errors for troubleshooting.