This question is being asked to hear more about your work and why you decided to become a Physical Therapist Assistant. Tell the interviewer how being a Physical Therapist Assistant is very rewarding. You work with patients one-on-one, see them progress through treatment and know that you are really making a difference in their lives. Whether your assisting a patient with a problem that is a result of injury or disease your role is to fosters the patient's return to maximal function. Talk about your current experience or where you see the career field going in the future. Be upbeat and positive and you'll be sure to knock this one out of the park.