Arrived at the emergency room at 11:30 am, left at...

Arrived at the emergency room at 11:30 am, left at 10:45 pm ... so ok we are in the emergency room but clearly there is a lack of staff in this hospital, and if the emergency rooms are so crowded with minor ailments, I do not understand why when charge, the nurses do not send them home, this would reduce the waiting time for real emergencies ... otherwise the staff are friendly and very patient, but not numerous enough in relation to the workload.