The PMHNP is treating an 81-year-old man believed to have dementia. She asks him questions about memories that his family has described as prominent aspects of his life. The patient is unable to recall any of these memories. Which area of the brain is affected?
Hippocampus
Hypothalamus
Thalamus
Amygdala
The Correct Answer is A
Choice A reason: The hippocampus is central to the formation and retrieval of long-term memories. Impairment in this region leads to significant anterograde and retrograde memory deficits seen in dementia.
Choice B reason: The hypothalamus regulates homeostasis and autonomic functions but does not play a primary role in memory recall.
Choice C reason: The thalamus acts as a relay station for sensory and motor signals and contributes to attention and consciousness but is not the main center for episodic memory retrieval.
Choice D reason: The amygdala is involved in emotion, fear responses, and emotional memory processing, not the recall of specific episodic memories.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Khayal is a South Asian culture-bound syndrome associated with anxiety and somatic complaints, not acute episodes of shouting and aggression.
Choice B reason: Ataque de nervios is a Latino culture-bound syndrome triggered by acute stress or trauma, characterized by shouting, trembling, and emotional outbursts, matching this patient’s presentation.
Choice C reason: Amok is a Southeast Asian syndrome involving sudden aggressive outbursts, but it is culturally specific to Malaysia and the Philippines.
Choice D reason: Dhat is a South Asian culture-bound syndrome involving anxiety about semen loss, not acute aggressive episodes.
Correct Answer is A
Explanation
Choice A reason: A transverse fracture is a horizontal break across the bone, not diagonal. A diagonal break is an oblique fracture.
Choice B reason: A greenstick fracture occurs when the bone bends and cracks on one side without breaking completely, consistent with the definition provided.
Choice C reason: Comminuted fractures involve the bone being crushed into multiple fragments, accurately described.
Choice D reason: Segmental fractures involve the same bone being broken in two or more distinct places, leaving a floating segment between breaks, consistent with the description.
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