Pain Flashcards
Define pain
Unpleasant sensory and emotional experience associated with, or resembling that associate with actual or potential tissue damage
Define immediate pain
Warns of imminent tissue damage - withdraw from source of injury
Define persisting pain
After immediate pain
Encourages us to immobilise the injured area, giving damage the best chance to heel
Define nociception
Describes neural processes involved in producing and the sensation of pain
Define nociceptive pathways
Transduction in the periphery, through transmission to the dorsal horn of the spinal cord, then on to the brain
What are the phases of pain
Phase 1 - instant
Phase 2 - acute
Phase 3 - chronic (abnormal)
Define acute pain
< 12 weeks duration
Define chronic pain
Continuous pain lasting > 12 weeks
Pain that persists beyond the tissue healing time
Chronic non-cancer pain vs chronic cancer pain
Define nociceptive pain
Pain that arises from actual or threatened damage to non-neural tissue and is due to the activation of nociceptors
Define neuropathic pain
Pain causes by a lesion or disease of the somatosensory nervous system
Define nociplastic pain
Pain that arises from altered nociception despite no clear evidence of actual or threatened tissue damage causing the activation of peripheral nociceptors, or evidence for disease or lesion of the somatosensory system causing pain
Define allodynia
Pain due to a stimulus that does not normally provoke pain
Define dysesthesia
An unpleasant abnormal sensation whether spontaneous or evoked
Define hyperplasia
Increased pain from a stimulus that normally provokes pain
Define hypoalgesia
Diminished pain in response to a normally painful stimulus
