A Sentinel Event Is Usually One That Results in an Unexpected

A sentinel event is usually one that results in an unexpected outcome for the patient and "signals" the need for investigation and response.Which of the following would be considered a sentinel event?

A) A patient who requires a left leg amputation after developing an arterial occlusion at the access site
B) An older adult patient who falls after trying to get up by herself
C) A patient who receives two doses of amiodarone because the nurse did not chart the first one
D) A patient whose peripheral pulses have not been checked for 2 hours after he returns from a cardiac catheterization