A nurse is teaching the guardian of a school-age child who has autism spectrum disorder about a new prescription for risperidone. Which of the following statements by the guardian demonstrates an understanding of the teaching?

Choice A reason: Risperidone is an atypical antipsychotic approved for managing irritability in children with autism spectrum disorder. It is particularly effective in reducing aggression, tantrums, and self-injurious behaviors. Clinical trials have shown significant improvement in disruptive behaviors, making this statement accurate and reflective of appropriate understanding. Choice B reason: Risperidone is not associated with hypoglycemia. Its metabolic side effects more commonly include weight gain, increased appetite, and potential changes in lipid and glucose metabolism, but not acute drops in blood sugar. Therefore, this statement reflects a misunderstanding of the drug’s side effect profile. Choice C reason: Routine lab monitoring may be necessary depending on the duration of therapy and the child’s response. While risperidone does not require frequent lab tests like lithium or clozapine, clinicians often monitor weight, glucose, and lipid levels due to metabolic risks. Saying no lab tests are needed is inaccurate. Choice D reason: Muscle spasms are not an indication to increase the dose of risperidone. In fact, extrapyramidal symptoms such as muscle rigidity or spasms may signal a need to reduce the dose or discontinue the medication. This statement reflects a misunderstanding of how side effects are managed.