WNL: Within Normal Limits.Click to see full answer. In this way, what does WNL mean in physical therapy? Within Normal Limits Also Know, what does SPT mean in physical therapy? Student of Physical Therapy Suggest Similarly, it is asked, what does it mean in physical therapy? : therapy for the preservation, enhancement, or restoration of movement and physical function impaired or threatened by disease, injury, or disability that utilizes therapeutic exercise, physical modalities (such as massage and electrotherapy), assistive devices, and patient education and training.What does SpV mean in physical therapy?Selective proximal vagotomy + 1 variant. SpV. Selective Proximal Vagotomy. medicine, healing.