The Nurse Is Caring for a Male Patient with Myasthenia

The nurse is caring for a male patient with myasthenia gravis who will begin taking ambenonium chloride (Mytelase) .When performing a health history,the nurse will be concerned about a history of which condition in this patient?

A) Benign prostatic hypertrophy
B) Chronic constipation
C) Erectile dysfunction
D) Upper respiratory infection