Which test is used to assess balance in cranial nerve VIII?
Snellen chart.
Rinne test.
Weber test.
Romberg test.
The Correct Answer is D
Choice A reason: The Snellen chart tests visual acuity (cranial nerve II), not balance, which is assessed by cranial nerve VIII via the Romberg test. Misidentifying this risks incorrect neurological evaluation, potentially missing vestibular deficits, critical for diagnosing balance disorders like vertigo or labyrinthitis in patients with cranial nerve issues.
Choice B reason: The Rinne test assesses hearing (cranial nerve VIII) by comparing air and bone conduction, not balance, which the Romberg test evaluates. Assuming Rinne tests balance misguides assessment, risking oversight of vestibular dysfunction, essential for diagnosing conditions affecting equilibrium in patients with suspected nerve VIII issues.
Choice C reason: The Weber test evaluates hearing lateralization (cranial nerve VIII), not balance, assessed by the Romberg test. Misidentifying Weber risks missing balance deficits, potentially delaying diagnosis of vestibular disorders like Meniere’s disease, critical for managing symptoms and preventing falls in patients with cranial nerve VIII dysfunction.
Choice D reason: The Romberg test assesses balance (cranial nerve VIII’s vestibular component) by evaluating posture with eyes closed, detecting vestibular or proprioceptive deficits. It’s critical for diagnosing balance disorders, guiding interventions like vestibular therapy, essential for preventing falls and managing conditions affecting equilibrium in patients with nerve VIII issues.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Fatigue is not part of BE FAST (Balance, Eyes, Face, Arms, Speech, Time) and is nonspecific, not a primary stroke sign. Facial drooping is critical. Assuming fatigue risks missing urgent stroke symptoms, delaying thrombolytic therapy, essential for minimizing brain damage within the critical time window.
Choice B reason: Fever is not in BE FAST and is not a primary stroke indicator, though it may occur later. Facial asymmetry is a key sign. Assuming fever misdirects assessment, risking delayed stroke recognition, critical for initiating rapid interventions like tPA to restore cerebral perfusion and reduce disability.
Choice C reason: Feet (balance) aligns with “B” in BE FAST, not “F,” which represents facial drooping. Misidentifying this risks confusing stroke assessment, potentially delaying recognition of facial asymmetry, a hallmark sign, critical for prompt stroke intervention to minimize neurological damage and improve patient outcomes.
Choice D reason: In BE FAST, “F” stands for face, assessing facial drooping or asymmetry, a common stroke sign due to cranial nerve VII involvement. It’s critical for rapid identification, enabling timely interventions like thrombolytics within 4.5 hours, minimizing brain damage and improving recovery chances in acute ischemic stroke patients.
Correct Answer is C
Explanation
Choice A reason: Head protrusions are not expected in older adults; they may indicate abnormal growths or trauma, requiring investigation. Thinning hair is a normal aging change. Assuming protrusions are expected risks missing serious conditions like tumors, delaying diagnosis and treatment critical for ensuring safety in elderly patients.
Choice B reason: Asymmetry of facial features is not a normal aging variation; it may suggest stroke or Bell’s palsy, needing urgent evaluation. Thinning hair is expected due to hormonal changes. Assuming asymmetry is normal risks overlooking neurological issues, delaying interventions critical for older adults’ health and functional outcomes.
Choice C reason: Thinning hair is an expected aging variation, resulting from reduced hair follicle activity and hormonal changes in older adults. Unlike vertigo or asymmetry, it’s benign and doesn’t require intervention unless cosmetic. Recognizing this ensures accurate assessment, focusing on abnormal findings like vertigo that need medical attention in elderly patients.
Choice D reason: Vertigo is not an expected aging variation; it may indicate inner ear disorders or neurological issues, requiring evaluation. Thinning hair is a normal change. Assuming vertigo is expected risks delaying diagnosis of treatable conditions like BPPV, compromising safety and quality of life in older adults.
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