ATI RN
Questions About Nervous System Questions
Question 1 of 5
Which of the following is the rationale to perform a spinal tap on a newly diagnosed client with leukemia?
Correct Answer: B
Rationale: A spinal tap checks for leukemia cells in the CSF, indicating CNS involvement. It’s not primarily for meningitis in this context, nor for leukemia typing or pressure reduction.
Question 2 of 5
Of the following statements about the sympathetic division of the ANS: (i) all its neurons release norepinephrine as their primary neurotransmitter substance; (ii) all the cell bodies of its postganglionic neurons lie in or near the organ innervated; (iii) the cell bodies of its preganglionic neurons lie in the thoracic and lumbar cord; one would say that:
Correct Answer: D
Rationale: (i) True: Postganglionic sympathetic neurons release norepinephrine (except sweat glands). (ii) False: Postganglionic bodies are in chain ganglia, not near organs. (iii) True: Preganglionic neurons are in T1-L2.
Question 3 of 5
A patient scheduled for surgery confides in his nurse the night before that he is 'terribly scared.' Which of the following indicate(s) increased sympathetic activity in this patient:
Correct Answer: D
Rationale: All are sympathetic 'fight-or-flight' signs: dry mouth (reduced salivation), sweating (stress response), pale skin (vasoconstriction), dilated pupils (adrenergic).
Question 4 of 5
A patient with a contusion over the parotid region has the following symptoms: paralysis of facial muscles, one eye can't be shut, corner of the mouth droops. Which cranial nerve is damaged?
Correct Answer: B
Rationale: Facial nerve (VII) damage near the parotid gland causes facial paralysis, inability to close the eye, and drooping mouth.
Question 5 of 5
The neuroglial cells that have functions similar to white blood cells are:
Correct Answer: C
Rationale: Microglia act as the CNS immune cells, phagocytosing debris and pathogens, similar to white blood cells. Oligodendrocytes myelinate, astrocytes support, ependymal cells line ventricles, lymphocytes are immune system cells.