The Physical Therapy Practice Act of the State of South Carolina defines Physical Therapy as:

“The practice of physical therapy” means the evaluation and treatment of human beings to detect, assess, prevent, correct, alleviate, and limit physical disability, bodily malfunction, and pain from injury, disease, and any other bodily or mental condition and includes the administration, interpretation, documentation, and evaluation of physical therapy tests and measurements of bodily functions and structures; the establishment, administration, evaluation, and modification of a physical therapy treatment plan which includes the use of physical, chemical, or mechanical agents, activities, instruction, and devices for prevention and therapeutic purposes; and the provision of consultation and educational and other advisory services for the purpose of preventing or reducing the incidence and severity of physical disability, bodily malfunction, and pain. The use of roentgen rays and radium for diagnostic or therapeutic purposes and the use of electricity for surgical purposes, including cauterization and colonic irrigations, are not authorized under the term “physical therapy” as used in this chapter, and nothing in this chapter shall be construed to authorize a physical therapist to prescribe medications or order laboratory or other medical tests.

EMG/NCS Testing uses electricity and Musculoskeletal Ultrasound uses sound waves for the evaluation (testing and measurement) of the neuro-musculoskeletal system.

APTA fully supports PTs practicing EMG/NCS Testing as it is within the scope of Physical Therapy Practice. The Orthopedic Section of the APTA in a white paper not only advocates the use of Musculoskeletal Ultrasound Imaging within the scope of practice for Physical Therapy but also endorses its application both for diagnostic as well as procedural purposes to aid neuromuscular re-education, dry needling, and electroneuromyography.

Find here information about Direct Access to Physical Therapy in your state.