Which of the following tasks is a PTA NOT allowed to perform?

A Physical Therapist Assistant (PTA) works under the supervision of a licensed Physical Therapist (PT) and while they have specific responsibilities, there are critical limitations on their scope of practice. The task of readjusting or modifying the Plan of Care without PT supervision is not permitted, as it requires professional judgment and expertise that only a licensed PT possesses. The Plan of Care outlines the treatment strategies and goals for the patient, and any changes to it must be made by the PT to ensure that they align with the overall treatment plan and the patient's evolving needs.

In contrast, the other tasks listed—documenting treatment provided, assisting with patient exercises, and providing education about therapeutic exercises—are within the PTA's scope of practice, as they can perform these under the direction and supervision of a licensed PT. Therefore, option B accurately identifies a task that a PTA is not allowed to perform independently, emphasizing the importance of supervision and the collaborative nature of physical therapy practice.