What is the average ratio for nurses? I just started on an adult acute behavioral health unit. When I was hired I was told 1/6. That seemed safe. Now it is changed to 1/8. We have a lot of acute psychotic patients. I just got hit or the first time this week. Several staff have had serious injuries recently. Now I am reconsidering if I made the right decision. I really like this new job nut I want to be safe and keep my patients safe.