A Client with Myasthenia Gravis Is Receiving Therapy with Neostigmine

A client with myasthenia gravis is receiving therapy with neostigmine.The client telephones to report severe abdominal pain for the last four hours.The nurse's most appropriate response would be:

A) "This is a common side effect, and should resolve when you have a bowel movement."
B) "You are probably constipated.Take a laxative and return to the office in the morning."
C) "Increase your evening dose of medication.This should resolve your pain."
D) "You need to be evaluated immediately for a bowel obstruction."