Association between fractional exhaled nitric oxide, sputum induction and peripheral blood eosinophil in uncontrolled asthma.
Jie GaoFeng WuPublished in: Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology (2018)
Blood eosinophils and FeNO can accurately predict eosinophilic airway inflammation in uncontrolled asthmatic patients. FeNO is poor surrogates for sputum neutrophils and blood eosinophils. The FeNO level and blood eosinophils, which determine an optimal cutoff for sputum eosinophilia, need more studies.