Final answer:
Medicare Part B mandates general supervision for physical therapy services provided by PT students, where the therapist must be available for assistance but not necessarily on site.
Step-by-step explanation:
The question pertains to the level of supervision required under Medicare Part B for physical therapy (PT) students. Medicare Part B requires general supervision for physical therapy services provided by students. General supervision means that the physical therapist is not required to be on site for the service, but they must be available to provide assistance and direction throughout the performance of the procedure. It is different from direct supervision, where the physical therapist must be physically present and immediately available to furnish assistance and direction throughout the procedure. It is also distinct from personal supervision, which requires the physical therapist to be present in the room during the procedure.