The client is diagnosed with myasthenia gravis. Which intervention should the nurse implement when administering the anticholinesterase pyridostigmine (Mestinon)?

A Administer the medication 30 minutes prior to meals. D Assess the client's blood pressure prior to administering medication. C Explain the importance of sitting up for one (1) hour after taking medication. B Instruct the client to take with eight (8) ounces of water.