Abstract
Objective: The identification of persistent airway obstruction is key to making a diagnosis of COPD. The GOLD guidelines suggest a fixed criterion—a post-bronchodilator FEV1 / FVC ratio < 70%—to define obstruction, although other guidelines suggest that a postbronchodilator FEV1 /FVC ratio
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APA
Grafino, M., Todo-Bom, F., Lutas, A. C., Cabral, J., Pereira, M., Valença, J., & Furtado, S. T. (2021). Spirometry for the diagnosis of airway obstruction in patients with risk factors for COPD: the GOLD and lower limit of normal criteria. Jornal Brasileiro de Pneumologia, 47(6). https://doi.org/10.36416/1806-3756/e20210124
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