Pain Flashcards
Acute Pain
a physiological mechanism that protects an individual from harmful stimulus (short duration, limited damage)
Nociceptor
sensory, peripheral pain nerve fiber
Prostoglandins
a pain-sensitizing substance that surrounds pain fibers in extracellular fluid, spreading pain message & causing inflammatory response
Endorphins
inhibitory neurotransmitters that decrease neuron activity without directly transferring a nerve signal through a synapse
Chronic Pain
“persistent non-cancer pain” not protective, prolonged pain varied in intensity & usually lasting longer (> 6 months), doesn’t always have identifiable cause, leads to great personal suffering
Cancer Pain
caused by tumor progression & related to pathological response processes, invasive procedures, treatment, toxicity, infection & physical limitations
Referred Pain
pain occuring distant to the actual pain site
Patient-Controlled Analgesic
drug delivery system that allows patients to self-administer analgesic meds when they want
Cutaneous Stimulation
stimulation of patient skin to prevent or reduce pain perception
Transcutaneous Electrical Nerve Stimulation (TENS)
technique in which a battery powered device blocks pain impulses from reaching the spinal cord by delivering weak electrical impulses to the skin surface
Relaxation
mental & physical freedom from tension & stress that provides individuals with a sense of self-control
Guided Imagery
method of pain control in which the patient creates a mental image, concentrates on that image & gradually becomes less aware of pain
Analgesics
drugs that relieve pain
Opioids
drug derived from the opium poppy or produced synthetically that alters perception of pain & with repeated use, may cause physical/psychological dependence
Local Anesthesia
medication that causes loss of sensation to a localized body part
Epidural Infusion
regional anesthesia administered into the epidural space int he spinal cord to block a group of sensory nerve fibers (through a catheter)
Somatic Pain
pain that originates from skin, muscle, bone, or tissue
Visceral Pain
pain that originates from viscera or hollow organs
Neuropathic Pain
pain that originates from nerve damage
Phantom Pain
pain that is perceived from a missing limb
Pain Threshold
the least amount of stimulation that a person requires to perceive pain
Pain Tolerance
maximum amount & duration of pain that person is willing to endure
Hyperalgesia
heightened, severe response to pain
Placebo
inactive substance or treatment given instead of one that has a proven effect