Combining spirometry and fractional exhaled nitric oxide improves diagnostic accuracy for childhood asthma.
Sang-Yong EomJoon Kee LeeYoung-Joon LeeYoun-Soo HahnPublished in: The clinical respiratory journal (2019)
FEF25-75 percent predicted had a better diagnostic value in detection of childhood asthma than other standard spirometric indices and its combination with FeNO improves the diagnostic accuracy for childhood asthma.