Pain Management Flashcards
Define physiological pain
Pain disappears when stimulus removed
Response proportionate to stimulus
Define inflammatory pain
Clinical pain which may be caused by sx
Pain pathways become more sensitive; may lead to -
Allodynia (hypersensitivity to non-painful stimuli)
Hyperalgesia (greater intensity & duration)
Define neuropathic pain
Caused by direct damage to NS
Define pre-emptive analgesia
Admin prior to pain stimulus
Prevents neuron sensitisation
Opioid area of action
Centrally & peripherally
NSAID area of action
Peripherally
Alpha-2 reversal…
Removes analgesia
Ketamine area of action
Centrally
Provides somatic analgesia -
Body wall & skeletal muscle
Analgesic which can be used for neuropathic pain
Gabapentin
Signs of pain intra-op
Increased HR & RR Dilation of bronchi Arrhythmia due to epinephrine release Dilation of skeletal muscle blood vessels GIT blood vessel constriction