A nurse is reviewing the medication list for a client who has a new diagnosis of type 2 diabetes mellitus. The nurse should recognize which of the following medications can cause glucose intolerance?

A. Cimetidine is an H2 receptor antagonist used for gastric ulcers and GERD; it does not significantly affect glucose tolerance. B. Dextromethorphan is a cough suppressant and is not known to impact blood glucose levels. C. Prednisone is a corticosteroid that can cause glucose intolerance by increasing insulin resistance and promoting gluconeogenesis, which can elevate blood glucose levels. D. Atorvastatin is a statin used to lower cholesterol; while statins may have a minimal effect on glucose metabolism, they are not a primary cause of glucose intolerance.