Which cranial nerve is responsible for the sense of smell?
V – Trigeminal.
II – Optic.
I – Olfactory.
VIII – Vestibulocochlear.
The Correct Answer is C
Choice A reason: The trigeminal nerve (V) controls facial sensation and chewing, not smell, which is governed by the olfactory nerve (I). Misidentifying this risks incorrect neurological assessment, potentially missing olfactory deficits indicating brain injury or tumors, critical for accurate diagnosis and management in patients with sensory complaints.
Choice B reason: The optic nerve (II) governs vision, not smell, which is the olfactory nerve’s function (I). Assuming optic involvement misguides cranial nerve assessment, risking oversight of olfactory dysfunction, which may signal neurological conditions like Parkinson’s or trauma, requiring targeted evaluation and intervention in clinical practice.
Choice C reason: The olfactory nerve (I) is responsible for the sense of smell, transmitting sensory input from the nasal mucosa to the brain. Accurate identification ensures proper neurological assessment, detecting deficits that may indicate trauma, tumors, or neurodegenerative diseases, guiding diagnosis and treatment in patients with smell-related complaints.
Choice D reason: The vestibulocochlear nerve (VIII) controls hearing and balance, not smell, which is the olfactory nerve’s role (I). Misidentifying this risks incorrect assessment, potentially overlooking olfactory issues signaling neurological pathology, delaying diagnosis and management critical for addressing sensory deficits in clinical neurological evaluations.
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 A
Explanation
Choice A reason: Dementia is a progressive condition causing memory decline and impaired daily activities, as seen in Alzheimer’s or vascular dementia. This definition aligns with clinical criteria, guiding diagnosis and care like cognitive therapy or medications. Accurate recognition ensures proper support, critical for improving quality of life in affected patients.
Choice B reason: Assuming false is incorrect, as dementia accurately describes progressive cognitive and functional decline. Misidentifying this risks misunderstanding the condition, potentially delaying diagnosis or interventions like cholinesterase inhibitors. Recognizing dementia’s definition ensures timely care planning, essential for managing symptoms and supporting patients and families in chronic cognitive disorders.
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