Pain Assessment Flashcards
What is transduction?
- tissue damage
- sends pain impulse to spinal cord
What are the 4 phases of pain?
Transduction
Transmission
Perception
Modulation
What is transmission?
- pain impulse travels from spinal cord to brain
What is perception?
- cerebral cortex interprets pain
what is modulation?
- pain messages may be inhibited
What are the 2 types of pain?
acute pain - causes sympathetic response - fight or flight
chronic pain - lasts >6 months - persistent, unrelieved pain; may cause parasympathetic response
Sources of pain (4)
Nociceptive
Neuropathic
Cancer/malignant
Referred
What is nociceptive pain?
- Normal response
- visceral pain - stimulation of the nociceptors in INTERNAL organs
- Deep or superficial somatic pain - deep = stimulation of receptors in skeletal muscles, joints and fascia; - superficial = result of pain in receptors found in skin and subcutaneous tissues
What is neuropathic pain?
- abnormal response; caused by direct damage to the somatosensory nervous system (ex: phantom limb)
What is pain?
- an essential somatic sensation to signals tissue-damage; the position of the pain indicates an underlying cause
Subjective pain data
pain is whatever a patient says it is
use pqrstu
What is PQRSTU?
P = provocative or palliative - what brings it on?; what relieves it? Q = quality of the pain - what does it feel like?; what words describe it? R = region or radiation - where is it?; does it move to other areas? S = severity - how would you rate the pain on a severity scale? T = timing/onset of the pain - when did it start?; is it constant? U = understanding of pain - what do you think is causing it?
Objective pain data
- brief pain inventory
- pain rating scales: numeric rating scale; descriptor scale; faces of pain scale
What is the best indicator pain?
Self-report; make sure to ask patients regularly