RecruitingEarly Phase 1Drug trialTimely Administration of IV Magnesium Sulfate in Patients With a Moderate Asthma ExacerbationThis study aims to identify whether early administration of magnesium sulfate in moderate asthma exacerbations can potentially avoid admission, decrease length of stay in the emergency department (ED), decrease length of stay (LOS) in the general hospital floor vs pediatric intensive care unit (PICU), and decrease the need for respiratory support.