Clinical Research Directory

Inclusion criteria * Age 3-17 years * Admission to the PICU * Primary diagnosis of critical asthma * Prescription for continuous inhaled beta-agonist therapy and/or intravenous (IV) beta-agonist therapy * Prescription for intravenous systemic corticosteroids Exclusion criteria * Critical Congenital Heart Disease Unrepaired * Tracheostomy Dependence at Admission * Ongoing Exposure to Azithromycin or Macrolide Antibiotics for any indication * Past Medical History of Prolonged QT Syndrome or Arrhythmias * Concomitant respiratory pathology including Acute Chest Syndrome, Interstitial Lung Disease, Cystic Fibrosis, and pulmonary hypertension