Nursing -NSG 3600 - Pediatric Health Exam
2 Questions With Complete Solutions
1. Describe the how pain is transferred to the CNS -
ANSWER 1. nerve endings get a message from the injured
site 2. Substance P, bradykinin, and prostaglandins are
released to sensitize the nerve endings, helping transmit the
pain from the injured site to the brain 3. Signal travels as an
electrochemical impulse along the length of the nerve to the
dorsal horn on the spinal cord (receives signals from all
over the body) 4. Spinal cords sends message to the
thalamus, the to the cortex 5. Pain relief starts w/ signals
from the brain that defend by way of the spinal cord 6.
Chemicals (endorphin S) are released in the dorsal horn to
diminish the pain message
2. Give an example of a chemical that is released in the dorsal
horn to diminish the pain message - ANSWER endorphin
S, opiates, enkephalins. These bind to the opiate receptors
in the dorsal horn of the spine and block pain transmission
3. Where does the pain signal travel to - ANSWER dorsal
horn of the spinal cord
,4. The spinal cord sends a message to where - ANSWER
thalamus
5. Thalamus sends a message to where - ANSWER cortex of
brain
6. GABA - ANSWER Gabapentin
7. How does GABA block pain - ANSWER Binding to
GABA specific receptors in the dorsal horn
8. Explain "Gate Control Theory" - ANSWER Body responds
to a painful stimulus by either opening the neural gate to
allow pain to be produced or creating a blocking effect at
the synaptic junction to stop the pain
9. Most common clinical interpretation of pain transmission is
a concept called - ANSWER nociception, which means the
perception of pain by sensory receptors located throughout
the body (nociceptors)
, 10. What are the four steps in nociception - ANSWER
Transduction, Transmission, Perception, Modulation
11. Noxious stimuli creating enough energy potential to
have caused nerve impulse perceived by nociceptors (free
nerve endings) is - ANSWER Transduction
12. Inhibitory and facilitating input from the brain
modulates or influences the sensory transmission at the
level of the spinal cord is - ANSWER Modulation
13. Signal moves from the periphery to the spinal cord
and up to the brain is - ANSWER transmission
14. Impulses being transmitted to the higher areas of the
brain are identified as pain is - ANSWER perception
15. Explain the four steps in Gate Control Theory -
ANSWER 1. Continued pain on peripheral neurons cause
the gate to open through depolarization of nerve fiber 2.
Pain passes from the PNS at the synaptic junction to the
CNS up the afferent nerve pathway 3. Passes through the
dorsal horn to the structures of the limbic system and