Fig. 1
From: Clarifying SABA overuse: Translating Canadian Thoracic Society guidelines into clinical practice
Reliever selection for patients with very mild or mild asthma. Higher exacerbation risk and poorly controlled asthma as defined by the Canadian Thoracic Society [9]. As-needed (PRN) short-acting beta-agonist (SABA) should be reserved only for patients with very mild or mild asthma who are not over-reliant on SABA, whose asthma is well-controlled on SABA alone, and who are not at higher risk for exacerbation. ED, emergency department; FEV1 forced expiratory volume in 1 s, ICS inhaled corticosteroid, PEF peak expiratory flow