A pain chart was a diagram documenting different levels of pain to help patients express their discomfort.

There was a pain chart on display at the Clinica Las Mariposas. (PIC: "Two of One")

Dr. T'Ana suggested patients who didn't like her methods of pain management could point to the pain chart. When Nurse Westlake suggested not all patients had a high pain tolerance like her, T'Ana suggested they update the pain chart by subjecting her to high levels of pain as a test subject. (LD: "Upper Decks")

Pain
Types of pain: Neuropathic • Nociceptive • Psychogenic
Treatments: Massage • Painkiller (Triptacederine)
Technology: Pain band • Pain chart • Pain management • Pain modulator