Since there are no practical objective methods of measuring pain, we must resort to scales and questionnaires to obtain information. Various tools can be used to assess pain intensity and the impact of pain on patient function, daily living and quality of life.
- The simplest measure of pain intensity involves use of numerical (NRS) , visual (VAS) or verbal (VRS) rating scales in which the patient rates their pain or selects verbal descriptors that best describe pain intesity.
Since most of these scales are very much based on a subjective estimation of the severity of pain, the CHANGE PAIN Scale, a new user-friendly communication tool aimed at assessing pain via a more holitic approach, taking into account patients’ expectations on pain relief and quality of life.
Detailed questionnaires can be used to assess the impact on quality of life e.g. SF-36, WOMAC.