The Client Is Being Treated with a Large Dose of an Anticholinergic

The client is being treated with a large dose of an anticholinergic medication. She complains of feeling disoriented. What should be the nurse's highest priority action based on the client's complaint?

A) Call the pharmacist; the dose of the medication may be incorrect.
B) Call the physician; the medication is causing an adverse reaction.
C) Call the pharmacist; the medication may be reaching a toxic level.
D) Call the physician; the medication is causing an expected side effect.