ATI RN
Pediatric Neurology Question Bank Questions
Question 1 of 5
Which order should the nurse question for a child just admitted with the diagnosis of bacterial meningitis?
Correct Answer: B
Rationale: IV fluids at 1½ timmaintenance should be questioned, per meningitis care texts. Excess fluid risks ICP increase in bacterial meningitis. Isolation , neuro checks , and acetaminophen are standard. Bs risk makes itthe correct answer.
Question 2 of 5
In fight or flight conditions, the pupil of the eye dilates. The motor impulse that is initiated in the hypothalamus and ultimately causthis pupillary dilation can be best described by which of the following statements:
Correct Answer: D
Rationale: The impulse will pass through the ventral root of a spinal nerve . In the fight or flight response, the sympathetic nervous system, activated by the hypothalamus, causpupil dilation via the dilator pupillae muscle. The pathway involvpreganglionic neurons from the thoracic spinal cord (T1-T2) exiting through the ventral root, synapsing in the superior cervical ganglion, and then postganglionic fibers traveling via the oculomotor nerve (III) pathway. Choice A is incorrect because this is an autonomic response, not involving somatic upper and lower motor neurons. Choice B is wrong as ganglia (superior cervical) are involved. Choice C is incorrect because the synapse occurs in the spinal cord or ganglion, not brainstem autonomic nuclei. Thus, D correctly identifithe ventral root as part of the sympathetic outflow, making it the right answer.
Question 3 of 5
Choose the true statement:
Correct Answer: A
Rationale: The arachnoid mater ends at S2 . The arachnoid mater, along with the dura mater, forms the dural sac, which ends at the S2 level, containing the subarachnoid space with CSF. Choice B is true but not the only correct option, as the spinal cord dohave cervical and lumbosacral enlargements. Choice C is incorrect because CSF is in the subarachnoid space (between arachnoid and pia), not between dura and arachnoid (the subdural space is potential). Choice D is wrong as the bundle of nerve roots below the conus medullaris is the cauda equina, not the conus itself. Since the question asks for a true statement and A is accurate and specific, it is the correct answer.
Question 4 of 5
Which of the following fibers carry the sensation of fast pain:
Correct Answer: C
Rationale: A delta fibers . Fast pain, which is sharp and well-localized, is transmitted by A delta fibers, which are small, myelinated axons with rapid conduction (5-30 m/s). They respond to mechanical and thermal stimuli, quickly signaling acute pain. Choice A, A alpha fibers, is incorrect as these large, myelinated fibers transmit proprioception and motor signals, not pain. Choice B, A beta fibers, is wrong because they carry touch and pressure sensations, not pain. Choice D, C fibers, transmits slow, dull, poorly localized pain, not fast pain. Thus, A delta fibers are specifically responsible for fast pain sensation, making C the correct answer.
Question 5 of 5
Regarding disc herniation, all of the following are true EXCEPT:
Correct Answer: A
Rationale: If the disc between L4 / L5 is herniated sensory changwill likely occur at the medial border of leg , which is false. An L4-L5 disc herniation typically affects the L5 nerve root, causing sensory changin the anterolateral leg and dorsum of the foot, not the medial leg (L4 dermatome). Choice B is true (S1 tests tiptoe standing via gastrocnemius). Choice C is correct (L4 compression affects knee jerk). Choice D is accurate (S1 compression weakens gastrocnemius). Thus, A misattributsensory changes, making it the exception and the correct answer.