A decrease in tongue strength is noted on examination of a client. The nurse interprets this as indicating a problem with which cranial nerve?
VIII
XII
VI
III
The Correct Answer is B
Choice A reason: Cranial nerve VIII (vestibulocochlear) governs hearing and balance, not tongue strength. A deficit here causes vertigo or deafness, not motor weakness in the tongue, making it unrelated to the observed decrease in muscle power during examination.
Choice B reason: Cranial nerve XII (hypoglossal) controls tongue movement and strength. Weakness here, as noted, suggests nerve damage, like in stroke or ALS, impairing the tongue’s ability to push against resistance, directly explaining the finding accurately.
Choice C reason: Cranial nerve VI (abducens) moves the eye laterally, not the tongue. A problem here causes diplopia, not tongue weakness, disconnecting it from the motor function loss observed in the client’s oral examination entirely here.
Choice D reason: Cranial nerve III (oculomotor) controls eye movement and pupil response, not tongue strength. Its dysfunction leads to ptosis or eye deviation, irrelevant to the tongue’s motor impairment noted in this neurological assessment fully.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Speaking very slowly distorts speech, worsening comprehension in presbycusis, an age-related high-frequency hearing loss. Facing the client aids lip-reading, but excessive slowness disrupts natural cadence, reducing clarity for those with sensorineural deficits typically seen here.
Choice B reason: Speaking directly, slightly slower, in a clear voice enhances understanding in presbycusis. Facing the client supports visual cues, while normal volume avoids distortion, addressing high-frequency loss effectively without assuming blockage or overcompensating unnecessarily for this condition.
Choice C reason: Presbycusis is sensorineural, not conductive from blockages like cerumen. Preparing to remove nonexistent wax misdiagnoses this age-related cochlear degeneration, wasting time and missing the communication adjustments needed for effective care in this scenario entirely.
Choice D reason: Raising the voice distorts sound, worsening presbycusis comprehension, as shouting amplifies lower frequencies, not the lost high ones. Assuming a “good ear” ignores bilateral degeneration, making this less effective than clear, direct speech for communication here.
Correct Answer is A
Explanation
Choice A reason: Clear, watery ear drainage post-collision suggests cerebrospinal fluid (CSF) leak from a skull fracture. This urgent finding risks infection or brain injury, warranting immediate provider notification for imaging and intervention in this trauma case accurately.
Choice B reason: Enlarged post-auricular nodes may indicate infection, not an acute emergency. Post-trauma, this is less critical than potential CSF leak, making it a lower priority for immediate provider action in this collision scenario fully here.
Choice C reason: Odorless, brown cerumen is normal earwax, not an emergency. After a collision, this benign finding doesn’t signal trauma-related urgency, excluding it from requiring prompt provider notification compared to more severe signs entirely here.
Choice D reason: White tympanic membrane spots suggest scarring or infection, not immediate danger. Post-collision, this lacks the acuity of CSF leak, rendering it non-emergent and less urgent for provider attention in this context comprehensively here.
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