The nurse is assisting with the administration of a Tensilon test. What response to the test causes the nurse to suspect that the patient has myasthenia gravis?
a. Dyspnea develops
b. Muscle cramps develop
c. Muscles become very weak.
d. Ptosis is temporarily improved.
ANS: D
A test for myasthenia gravis involves an intravenous injection of edrophonium (Tensilon, an anticholinesterase drug). If muscle strength improves dramatically (e.g., the patient can suddenly open the eyes wide), MG is diagnosed. A. B. C. Dyspnea, weakness, or cramping is not expected after Tensilon administration.
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