ATI RN
Questions About the Nervous System Questions
Question 1 of 5
A client has been prescribed a drug categorized as a sympathomimetic agent, which mimics or imitates sympathetic nervous system activity. What effects would the nurse expect to see in this client based on use of this drug?
Correct Answer: B
Rationale: Sympathomimetics (e.g., norepinephrine mimics) cause pupil dilation (fight-or-flight). BP increases, salivation decreases, pulse quickens.
Question 2 of 5
The inability of a patient to perceive pain might be due to a tumor or trauma of the:
Correct Answer: D
Rationale: The thalamus relays sensory signals, including pain, to the cortex. Damage here can impair pain perception. The insula processes taste/emotion, hypothalamus regulates homeostasis, red nucleus aids motor coordination, and pons handles respiration.
Question 3 of 5
An abnormal production of antidiuretic hormone (ADH) could result from a dysfunction of the:
Correct Answer: A
Rationale: The hypothalamus produces ADH, which is stored and released by the pituitary gland. Dysfunction here could disrupt ADH production. The pituitary releases it, but the hypothalamus is the source.
Question 4 of 5
The spinal cord ends at the level of the:
Correct Answer: B
Rationale: The spinal cord ends at the conus medullaris, typically around L1-L2 (first lumbar vertebra) in adults, not extending to the coccyx, sacrum, or sciatic nerve.
Question 5 of 5
Blockage of the flow of cerebrospinal fluid may result in:
Correct Answer: B
Rationale: Hydrocephalus results from CSF flow blockage, causing fluid buildup and pressure on the brain. Meningitis is infection, paraplegia is paralysis from spinal damage, and encephalitis is brain inflammation.