Just for a different viewpoint coming from a former rehab tech/to be nursing student this fall:
We've done toileting for nursing because there was no nurse or CNA to be found, even on patients who were not on our caseload. (They could usually be found in the nurses station and lounge, though that's another issue.)
The only time we left a patient who needed toileting was if they needed to be completely washed up, and even then we'd normally do it unless it was the end of their therapy time. Also, some activities cannot be billed for and therapists are discouraged from doing them because it takes away from their productivity time, time spent with patients who are paying, etc.
Also, I don't know about your SNF's, but we had a schedule, posted to all the nurses stations, daily. We do this so everyone can plan accordingly. We tried to have the more difficult ADL patients later in the day or have the OT do ADL's with them. We would try to make sure we weren't asking 1 CNA to get ready 4 patients for the same time. When patients aren't ready, it can mess up everything. Not every patient can be seen with another patient, so the order/timing we had patients in were for a reason, not arbitrary.
If nursing came in to rehab to tell us a patient on our schedule at that time was ready, we'd come get them. We often would get patients who weren't on the schedule at that time if they were ready and the one we needed wasn't ready, IF they could be seen with the patient(s) currently in the gym.
It's a failure in how payment is set up and the pressure put on therapy to only do activities that are billable. This was made even more difficult when laws were passed instructing what type of patients can and cannot be treated together depending on how many days they've been in therapy for. It isn't necessarily laziness or not wanting to help.
Just giving a different perspective, not trying to stir things up.
And, back to lurking