A client is experiencing muscle weakness in the upper extremities. The client raises an arm above the head but then loses the ability to maintain the position. Muscular dystrophy is suspected
Which diagnostic test would evaluate muscle weakness or deterioration? A) A serum calcium test
B) An electromyography
C) An arthroscopy
D) A magnetic resonance imaging (MRI)
B
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An electromyography tests the electrical potential of muscles and nerves leading to the muscles. It is done to evaluate muscle weakness or deterioration. A serum calcium test evaluates the calcium in the blood. An arthroscopy assesses changes in the joint. An MRI identifies abnormalities in the targeted area.
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