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A 73-year-old man suffered from a stroke of the right cerebellar hemisphere. What symptom is expected on neurologic examination?
A. Athetosis of both hands and arms
B. Dysdiadochokinesia in the left arm
C. Dysmetria of the right arm
D. Rebound phenomenon, on examination of the left arm
E. Resting tremor of the right hand
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B. Dysdiadochokinesia in the left arm
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sorry i change my mind...lol....must be C...as cerebellar lesion occurs same side....
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Option C is correct. Dysmetria is lack of coordination of movement typified by under- or overshooting the intended position with the hand, arm, leg, or eye. Dysmetria of a hand can make writing and picking things up difficult or even impossible. Dysmetria is usually caused by lesions in the cerebellum, although it can also be caused by lesions in sensory nervous pathways leading to the cerebellum or the motor pathways leading from it.
