AEMCA Practice Exam 2026 – 400 Free Practice Questions to Pass the Exam

The correct answer indicates that the typical duration between episodes of cluster headaches spans from hours to days. Cluster headaches are characterized by their cyclical pattern, often occurring in "clusters" where multiple headaches occur within a short period, usually followed by periods of remission. The intervals between these headache attacks can vary, but they frequently fall within this time frame, making hours to days a reasonable estimate.

Understanding the nature of cluster headaches is essential. They usually emerge in bouts, where the headaches can occur several times a day over weeks, followed by long periods without headaches. The brevity of the remission phase is crucial, as it distinguishes cluster headaches from other headache types, such as migraines, which may have longer inter-attack intervals.

The other options present durations that do not align with the established patterns of cluster headache episodes. For instance, minutes to hours would suggest a frequency that is too rapid for the typical cycles observed in cluster headaches. Days to weeks expands the duration of remission too broadly, while months to years stretches the inter-episode period to an impractical range that does not reflect the common clinical presentation of this condition. Thus, the choice that reflects the most accurate understanding of cluster headache cycles is hours to days.