So, why didn’t the staff person who was waiting for the muzzy get her off the floor?
The item says the “carer” - nursing assistant or something like that? licensed vocational nurse? - went for help to lift the patient. This implies she was physically incapable of safely lifting the patient alone.
On the other hand, it doesn’t seem that her sitting on the floor for five to ten minutes made much difference, except as an example of the general level of care. She died hours later, apparently from, most proximately, the fall from her bed.