Final answer:
A PTA is able to progress treatment within the plan of care.
Step-by-step explanation:
A PTA is able to progress treatment within the plan of care. PTAs, or Physical Therapist Assistants, work under the direction and supervision of Physical Therapists (PTs) to help implement and carry out treatment plans for patients. This can involve various activities such as therapeutic exercises, manual therapy techniques, and modalities like heat or electrical stimulation. PTAs play a vital role in assisting PTs in delivering effective and successful treatment to patients.