Answer to Question 1
Your co-worker should go to the resident's bedside and attempt to meet his or her needs. Safety of the resident and employee is important. Protecting the resident from a fall or skin tears is a priority. The employee avoiding harm is important as well. Even though the co-worker is not assigned to the resident, he or she still worked as part of the team to care for and ensure the safety and satisfaction of the resident. The CNA could sit with the resident and assist with toileting or other personal care needs.
Answer to Question 2
Yes, this is physical abuse. Go into the shower room and immediately stop the co-worker's actions, turn the call light on, get help finding the nurse, and report what has occurred. Do not leave the resident alone with the co-worker.