An incident is an event that results in unintended harm or loss. Types of incidents include falls, exposure to bodily fluids, burns, lacerations, and being pinched in equipment. Sentinel events are unexpected occurrences leading to major loss of function or death, such as surgery on the wrong patient or retained surgical instruments. Specific sentinel events include surgical, device/product, patient protection, care management, and criminal events like abduction or assault within a healthcare facility.