How to Assess Alveolar Nitric Oxide

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Presentation transcript:

How to Assess Alveolar Nitric Oxide Lauri Lehtimäki, MD, PhD, Simona M. Cristescu, PhD, Alain Van Muylem, PhD, Marieann Högman, PhD, Anh Tuan Dinh-Xuan, MD, PhD CHEST Volume 146, Issue 6, Pages e234-e235 (December 2014) DOI: 10.1378/chest.14-1189 Copyright © 2014 The American College of Chest Physicians Terms and Conditions

Figure 1 Area under the curve of an exhaled nitric oxide (NO) profile may be severely influenced if exhalation flow rate varies in the beginning or if inhaled air contains high amounts of NO because of a high ambient NO concentration or nasal inhalation (dotted line) as compared with inhaling NO free air (solid line). However, the plateau value is repeatable and is not affected by such external factors. FENO = fraction of exhaled NO concentration; ppb = parts per billion. CHEST 2014 146, e234-e235DOI: (10.1378/chest.14-1189) Copyright © 2014 The American College of Chest Physicians Terms and Conditions