For 2 Weeks a Patient Has Taken Lithium and Risperidone

For 2 weeks a patient has taken lithium and risperidone daily for mania.The patient now reports diarrhea, vomiting, and blurred vision.The nurse observes a coarse hand tremor.What is the nurse's priority action to these assessment finding?

A) Administer a PRN dose of benztropine to relieve extrapyramidal symptoms (EPSEs) .
B) Hold the next dose of risperidone to prevent further drug-drug interaction.
C) Reassure the patient that these side effects will decrease with time.
D) Notify the prescribing physician immediately.