| A | B |
|---|
| pain | whatever ther person says it is |
| perception | point at which person is aware of pain |
| low or moderate pain | sympathetic response |
| severe or deep pain | parasympathetic response |
| Pain threshold | point at which a sensation is perceived as pain |
| Pain tolerance | point at which a pain sensation is no longer voluntarily endured |
| acute pain | rapid onset, less than 6 months duration |
| chronic pain | constant or intermittant, more than 6 months |
| Intractable pain | chronic pain caused by cancer |
| Phantom Pain | Pain perceived in body part that is no longer present |
| Placebo | inert substance given in place of drug |
| O | onset |
| P | provocation |
| Q | quality |
| R | radiation |
| S | severity |
| T | time |
| Referred pain | Pain is felt in part of body separate from source of pain |
| Radiating pain | Sensation of pain extending from initial site of injury to another body part |
