15 May 2019 It studies pulmonary volumes and outputs , i.e.: The volumes of air that the lungs can generate and move; It also studies the speed at which air moves through the respiratory tract during normal and forced inhalation and exhalation. Spirometry is done with a pneumotachograph , a device that measures and grades airflow. The resulting parameters are then compared with reference values. Spirometry results may help to diagnose: Decreases in airway size (narrowing or obstruction); Inability of the lungs to generate and propel enough air volumes when breathing. In specific cases, spirometry may be repeated after administration of a bronchodilator to assess bronchial response to treatment . This article was written with the support of physicians and other clinical professionals from the Hospital da Luz network. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.
