Concept 27: Pain Flashcards
nociceptors
cells of free nerve endings in the sensation of pain
found in all tissues except CNS
nociception
transmit pain information through the somatosensory system
acute pain
sudden onset and is typically clearly linked to a specific event injury or illness
tissue damage as a result of surgery, trauma, or burns
short-lived and diminish with normal healing
chronic pain
lasting more than 3 months and may last for years
result from underlying medical conidition (pathology)
cancer from tumor growth or osteoarthritis pain from joint degeneration
nociceptive pain
normal functioning of the noxious stimuli (tissue injury) that is being perceived as being painful aka eudynic pain
(sunburn, surgery, or trauma) described as aching, cramping, or throbbing
somatic pain
sharp pain that is well localized to a specific are of injury
visceral pain
arises from within the body cavity
most commonly the thorax, abdomen, and pelvis
respond to stretching, swelling, and oxygen deprivation and pain may radiate to other locations int he back or chest
neuropathic pain
results from pathology or disease of the somatosensory system
pathologic
postherpetic neuralgia, diabetic neuropathy, phantom pain, post-stroke pain syndrome
burning, sharp, and shooting
deafferentation pain
chronic and results from the loss of afferent input to the CNS.
may arise in the peripheral nerve avulsion or in the CNS from spinal lesion or multiple sclerosis
neuralgia pain
lancinating and associated with nerve damage or irritation along the distribution of a single nerve
sympathetic mediated pain
accompanied by edema, changes in skin blood flow, and abnormal sensation such as allodynia, hyperalgesia, and hyperpathia
central pain
lesion in the CNS, usually imvolving spinothalamic cortical pathways, such as a thalamic infarct
burning, electrical quality
mixed pain syndrome
painful condition and syndromes that are not easily categorized and are thought to be unique with multiple underlying and poorly understood mechanism
fibromyalgia and some low back and myofascial pain
pain on physical functioning
none use of affected area and immobility can lead to muscle atrophy and joint contraction, which further promote pain and impair physical functioning.
sympathetic nervous system activation caused by acute pain decreases the release of digestive enzymes in the GI tract and slows digestion
pain med cause constipation can further impair GI function
psychosocial consequence of pain
cause fear, anger, depression, anxiety, and reduced ability to maintain relationships, engage in normal activities, and continue to work.
pain untreated causes negative effects on every aspect of the patient’s life
pain treatment with opioids can include opioid use disorder, characterized by an overwhelming urge to use opioids even when they are no longer medically necessary to treat pain. addiction can effect every aspect of a person’s life, including their relationships, employment, and economic status.