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Which of the following CORRECTLY identifies a difference between neonatal<br />
and adult pain perception?<br />
<br />
a) Neonates have decreased density of peripheral nociceptors compared to adults<br />
<br />
b) Neonates have decreased pain signal modulation at the spinal cord level<br />
(compared to adults)<br />
<br />
c) Neonatal ascending spinothalamic tracts are incompletely myelinated<br />
<br />
d) Neonates have an enhanced descending pain-perception inhibition system.<br />
<br />
e) Neonatal pain desensitizes the infant to painful stimuli later in life<br />
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==Answer==<br />
Answer c. Despite the incomplete myelination and increased signal modification,<br />
the developing nervous system of the neonate is able to detect pain with an<br />
increased density of peripheral nociceptors and a less-developed descending<br />
inhibitory system. Importantly, exposure to pain early in life (once thought to be<br />
irrelevant due to immature pathways) is believed to sensitize the child to future<br />
pain by altering the development of the pain pathways.<br />
==Notes==<br />
<references /><br />
:This question originally printed in the [http://www.amazon.com/Justin-L.-Lockman/e/B00FLG5AEE/ref=ntt_dp_epwbk_0 Pediatric Anesthesiology Review Topics] kindle book series, and appears courtesy of Naerthwyn Press, LLC.<br />
==Keywords==<br />
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