Pain 46 Flashcards
Referred pain
Appear in different areas
Visceral pain
Pain arising from organs
Types of pain
Location
Duration
Intensity
Etiology
Chronic pain
Three months or longer
Mild pain
1-3
Moderate pain
4-6
Severe pain
7-10
Nociceptive
Intact nervous system says tissues are damaged
Somatic pain
Skin, muscles, bone or connective tissue nociceptive pain
Subcategories of nociceptive pain
Somatic and visceral
Neuropathic pain
Damaged nerves due to illness, injury, or unknown
Subtypes of neuropathic pain
Peripheral neuropathic pain and central neuropathic pain
Peripheral neuropathic pain
Phantom limb pain, carpal tunnel syndrome
Central neuropathic pain
MS, spinal cord, post stroke
Sympathetically maintained pain
Occasional abnormal connections between pain fibers in sympathetic nerves.
Edema, temperature, blood flow
Pain threshold
Least amount of stimuli that is needed for a person to label pain
Pain tolerance
Maximum amount of painful stimuli that a person is willing to withstand without seeking avoidance of pain or relief
Hyperalgesia and hyperpathia
Heighten responses to painful stimuli
Allodynia
Non painful stimuli that produces pain. Light touch, linen, water, wind
Dysesthesia
Unpleasant abnormal sensation. Mimics central neuropathic pain
Windup
Progressive increase in excitability and sensitivity of spinal cord neurons
Nociception
Physiological processes related to pain perception.
Transduction, transmission, perception, modulation
Nociceptors
Pain receptors excited by mechanical, thermal, chemical stimuli
Mechanical stimuli
Trauma, edema, blockage of duct, tumor, muscle spasm
Thermal stimuli
Heat/ cold
Chemical stimuli
Tissue ischemia
Muscle spasm
Modulation
Natural opioids in defending system
Fifth vital sign
Pain