Final answer:
Having the patient push off the bed using his hands when prompted is done to evaluate upper body strength.
Step-by-step explanation:
Having the patient push off the bed using his hands when prompted is done to evaluate upper body strength. This action tests the strength of the muscles in the arms and shoulders, as well as the core muscles involved in stabilizing the body while pushing off. It can help assess the patient's ability to perform tasks that require upper-body strength, such as lifting objects or performing push-ups.