I am blessed to work in home health with high tech and pediatric patients. Most of our cases are 1:1 & occasionally we have a case that is 1:2. I worked briefly on a long-term care unit where they were planning on 1:5 on a vent unit. I asked what I was to do with 2 alarms at one time? I asked which one I save. I did not stay there, as I felt it was unsafe. It was busy when we were 1:3 or 1:4. Cannot imagine what 1:5 would be like.