A patient who has diabetes mellitus is diagnosed with schizophrenia and the provider orders thioridazine. The patient asks the nurse why the provider hasn't ordered olanzapine [Zyprexa], which the patient has seen advertised on television. Which response by the nurse is the most important reason that this patient is not receiving olanzapine?

Question

Quizplus · Accepted Answer

Olanzapine is an SGA and, although it has fewer extrapyramidal side effects than the FGA the provider has ordered, it has an increased risk of metabolic side effects, which is contraindicated in patients with diabetes. It is more expensive, but this is not the most important reason for not prescribing it. Thioridazine has more side effects than olanzapine, but the side effects caused by olanzapine are more critical for this patient. Thioridazine does not have a faster onset of action.

A Patient Who Has Diabetes Mellitus Is Diagnosed with Schizophrenia