a tour bus has overturned, resulting in numerous patients. when you arrive, you are immediately assigned to assist in the triage process. patient 1 is a middle-aged male with respiratory distress, chest pain, and a closed deformity to his right forearm. patient 2 is a young female who is conscious and alert but has bilateral femur fractures and numerous abrasions to her arms and face. patient 3 is an older woman who complains of abdominal pain and has a history of cardiovascular disease. patient 4 is unresponsive, is not breathing, has a weak carotid pulse, and has a grossly deformed skull. what triage categories should you assign to these patients?