Treatment for severe exacerbations PEF less than 60% predicted or per sonal beat after initial bronchodilac (lessthan100L/mountain adults or response to therapy lasts less than2hours),includes repeated administration of rapid-acting beta2-agonistsaswellas systemic corticosteroids and supplemhtal oxygen.monitorpa-tients for response to therpy.They shouldn't be discharged until the PEI or FEV1 has returned to anacceptabl point and the distress is relieved.