A nurse is providing teaching with a nursing colleague about sentinel events. Which of the following statements by the nursing colleague indicates an understanding?

Rationale: A. Sentinel events are unexpected occurrences involving death, serious physical or psychological injury, or risk thereof. Administering incompatible blood products can cause life-threatening complications, making it a classic example of a sentinel event that requires immediate investigation and reporting. B. Administering a sedative as prescribed, even for a non-critical issue like insomnia, does not constitute a sentinel event because it is an expected, prescribed intervention without serious injury risk. C. While delayed medication administration is a medication error and should be reported according to policy, it is generally not classified as a sentinel event unless it results in serious harm. D. Inaccurate documentation is a reportable error and may impact care, but unless it causes serious injury or death, it is not considered a sentinel event.