A nurse is caring for a child who reports migraine headaches for the past 4 months. Which of the following actions should the nurse take first?

A. Refer the family to a chronic pain support group: While psychosocial support can be beneficial for children with chronic migraines, referral to a support group is not the priority initial action. The first step is to assess and understand the pattern and triggers of the headaches. B. Request a change in medication from the provider: Medication adjustments may be necessary, but the nurse must first gather objective and subjective data on the child’s pain patterns, frequency, and triggers before advocating for changes in pharmacologic management. C. Set up an appointment with the school nurse: Collaborating with the school nurse can help manage migraines during school hours, but this action is secondary to assessing the child’s headache history and current management at home. D. Review the child's electronic pain diary: Reviewing the electronic pain diary provides detailed, chronological information about headache frequency, intensity, triggers, and response to interventions. This assessment is essential for guiding further interventions and is the first action in clinical decision-making according to the nursing process.