Debunking myths in pulmonary function testing

The goal of evidence-based medicine is to move away from practices based on theory and replace them with practices based on robust scientific evidence. Unfortunately, many clinicians performing and interpreting pulmonary function tests dogmatically adhere to ideas based on theory despite evidence to the contrary. This paper will highlight examples of myths dressed up as science in the realm of pulmonary function testing. The goal of this paper is not just to inform but to also stimulate healthy debate and introspection about what we believe to be true and how these beliefs impact our practice and patient care