Pain Flashcards
Comfort and Pain are
subjective
Pain is no longer considered a symptom of an illness but is considered a
separate disease
pain is
- most common reason why patient seeks healthcare 2. whatever your patient says it is
nature of pain
physical, emotional, cognitive, and subjective
stimulis
can be physical and mental
physiology of pain
4 processes of nociceptive (normal) pain
4 processes of nociceptive (normal) pain:
transduction, transmission, perception, modulation
transduction
the process of converting thermal, chemical, or mechanical energy to electrical energy; begins in the periphery
Once transduction is complete, ____________ of the pain impulse begins. *
transmission
When cellular damage occurs, pain-sensing substances
called excitatory neurotransmitters (such as prostaglandins, potassium, histamine, and substance P) surround the pain fibers and begin spreading the pain message – causing an inflammatory response.
*Pain fibers enter the
spinal cord – ends within the gray matter where cell bodies, axons, and dendrites are located.
Within the dorsal horn, _________ is released, and causes
substance P; causing a synapse from the afferent / sensory peripheral nerves to nerves within the spinothalamic tract
*Two types of peripheral nerve fibers conduct painful stimuli:
(1) the fast, myelinated “A” fibers send sharp, localized and distinct sensations that localize the source of pain and detects its intensity. (2) the very slow, small, unmyelinated “C” fibers relay impulses that are poorly localized, aching, burning, and persistent. *(Trace the transmission of the pain stimulus.)
perception
is the point at which a person is aware of pain
The somatosensory cortex identifies
the location and intensity of pain.