Final answer:
An incident report should be filed in healthcare settings when an unexpected event occurs that could harm a patient, staff, or visitor, or when there's a significant deviation from standard procedures.
Step-by-step explanation:
The completion of an incident report is typically required in healthcare settings when an unexpected event occurs that could lead to or has led to harm to a patient, staff member, or visitor, or when there is a significant deviation from standard operations or procedures. Incident reports are crucial for documenting what happened, why it happened, and how it was addressed. They also serve as a tool for improving patient safety and care by identifying risks and preventing future incidents. Examples might include medication errors, falls, delays in treatment, or breaches in patient confidentiality.