Catherine Short is a mother of 4, recently injured her lower…
Catherine Short is a mother of 4, recently injured her lower back while trying to lift her infant from the crib using improper body mechanics. She is receiving outpatient physical therapy, including superficial heat, massage, education in proper body mechanics for pain relief. The physical therapist requests that you place a TENS unit to her lower back. Given that this is an acute injury, which TENS parameter is most likely to provide immediate pain relief?