A nurse is assessing a child who is being treated for bacterial pneumonia. The nurse notes an increase in the child's blood glucose. The nurse should identify this finding as an adverse effect of which of the following medications?

Rationale: A. Methylprednisolone: Methylprednisolone is a corticosteroid, which can increase blood glucose levels by promoting gluconeogenesis and reducing insulin sensitivity. Hyperglycemia is a known adverse effect, especially with prolonged or high-dose use. B. Ondansetron: Ondansetron is an antiemetic used to control nausea and vomiting. It does not affect glucose metabolism and is not associated with elevated blood glucose as a side effect. C. Guaifenesin: Guaifenesin is an expectorant that thins mucus to improve airway clearance. It has no effect on blood sugar levels and is not known to interfere with glucose regulation. D. Amoxicillin: Amoxicillin is a broad-spectrum antibiotic and does not typically cause changes in blood glucose. It is generally well-tolerated in terms of metabolic side effects.