emergency patient; emergency case
Refers to a person requiring urgent medical attention, typically in a hospital or ambulance context.
Emergency patients were brought in one after another.
This hospital accepts emergency patients 24 hours a day.
救急患者 is the fuller, more explicit phrase for an emergency patient, while 急患 is the shorter, more common everyday term.
Compound of 救急 (emergency, first-aid) and 患者 (patient).