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What constitutes a sentinel event in a healthcare setting?

  1. An event leading to minor injury

  2. An event causing no injury but leading to potential risk

  3. An event involving mild discomfort

  4. An event involving death or serious injury

The correct answer is: An event involving death or serious injury

A sentinel event is a term used in healthcare to describe an unexpected event involving death or serious physical or psychological injury, or the risk thereof. Option A is incorrect as it refers to a minor injury instead of death or serious injury. Option B is incorrect as it mentions no injury, while a sentinel event involves serious injury or the risk thereof. Option C is incorrect as it only mentions mild discomfort, which would not qualify as a sentinel event. Therefore, the only correct option is D.