The PMHNP is working on an inpatient geropsychiatric unit. He is conducting the Montreal Cognitive Assessment (MoCA) on an 89-year-old woman with suspected dementia. He asks her to draw a clock to test her visual processing abilities. Which area of the brain is responsible for this function?
Left (dominant) parietal lobe
Right (nondominant) parietal lobe
Temporal lobe
Occipital lobe
The Correct Answer is B
Choice A reason: The left parietal lobe is more involved with language and calculation rather than visuospatial processing.
Choice B reason: The right parietal lobe is responsible for visuospatial processing, including tasks like clock drawing, which require integrating visual information and spatial orientation.
Choice C reason: The temporal lobe is primarily involved in memory, hearing, and language comprehension, not visuospatial construction.
Choice D reason: The occipital lobe processes basic visual input but does not integrate spatial and constructional aspects required for complex visuospatial tasks like clock drawing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Exercise therapy is a cornerstone of first-line treatment, improving strength, flexibility, and pain outcomes.
Choice B reason: Cognitive behavioral therapy addresses the psychosocial aspects of chronic pain and is recommended as first-line management.
Choice C reason: Spinal manipulation is not universally considered first-line treatment; it is adjunctive and varies in effectiveness depending on provider and patient.
Choice D reason: Encouraging patients to remain active is first-line advice, as immobility can worsen pain and disability.
Correct Answer is B
Explanation
Choice A reason: A lithium level of 5 mEq/L is critically high and would indicate severe toxicity, not subtherapeutic dosing.
Choice B reason: A lithium level of 0.5 mEq/L is at the low end or below the therapeutic range for acute mania (0.8–1.2 mEq/L), suggesting subtherapeutic dosing and a need for an increased dose.
Choice C reason: A lithium level of 1.2 mEq/L is within the therapeutic range for acute mania and would not indicate underdosing.
Choice D reason: A lithium level of 15 mEq/L is lethally toxic and requires immediate medical intervention, not dose escalation.
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