A 70-year-old man walks in the office unassisted and is swaying from one side to the other. Which of the following screening tests should be used to identify cerebellar function in this patient?
Rapid alternating movements and finger-to-nose tests
Balancing on one foot with eyes closed and copying a polygon
Stereognosis and Romberg tests
Romberg and Weber tests
The Correct Answer is A
Choice A reason: This is correct. Rapid alternating movements (dysdiadochokinesia) and the finger-to-nose test assess cerebellar coordination and fine motor control, which are essential components in evaluating cerebellar function.
Choice B reason: Balancing and copying a polygon evaluate balance and visuospatial skills but are less specific for cerebellar dysfunction.
Choice C reason: Stereognosis assesses sensory function, not cerebellar function. The Romberg test evaluates proprioception rather than cerebellar coordination.
Choice D reason: The Romberg test assesses sensory input for balance, and the Weber test evaluates hearing. Neither is specific for cerebellar function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: This is correct. Rapid alternating movements (dysdiadochokinesia) and the finger-to-nose test assess cerebellar coordination and fine motor control, which are essential components in evaluating cerebellar function.
Choice B reason: Balancing and copying a polygon evaluate balance and visuospatial skills but are less specific for cerebellar dysfunction.
Choice C reason: Stereognosis assesses sensory function, not cerebellar function. The Romberg test evaluates proprioception rather than cerebellar coordination.
Choice D reason: The Romberg test assesses sensory input for balance, and the Weber test evaluates hearing. Neither is specific for cerebellar function.
Correct Answer is D
Explanation
Choice A reason: Trichotillomania involves hair pulling often due to tension or boredom without a preoccupation with symmetry. In this case, the pulling is driven by a compulsion for symmetry, making this diagnosis less appropriate.
Choice B reason: BDD involves distress over perceived physical flaws. While the patient is concerned about asymmetry, the hair pulling is specifically performed to alleviate compulsive distress, consistent with OCD rather than BDD.
Choice C reason: Delusional disorder, somatic type, involves a fixed false belief about bodily functions or appearance. The patient acknowledges the asymmetry is "all in her head," indicating insight, which rules out delusional disorder.
Choice D reason: OCD is characterized by obsessions (distressing thoughts) and compulsions (ritualized behaviors to alleviate distress). The patient’s repetitive eyebrow tweezing to achieve symmetry despite knowing it is unnecessary reflects a compulsion, confirming OCD.
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