title: Pulmonary function studies: aid to diagnosis for dyspnea.
mesh_terms: D001249:Asthma / Q000175:diagnosis; D001987:Bronchiectasis / Q000175:diagnosis; D001991:Bronchitis / Q000175:diagnosis; D002000:Bronchospirometry; D002245:Carbon Dioxide / Q000032:analysis; D003937:Diagnosis, Differential; D004417:Dyspnea / Q000175:diagnosis*; D004646:Emphysema / Q000175:diagnosis; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D009584:Nitrogen; D010101:Oxygen Consumption; D011655:Pulmonary Embolism / Q000175:diagnosis; D011658:Pulmonary Fibrosis / Q000175:diagnosis; D011868:Radioisotopes; D014978:Xenon
chemical_list: D011868:Radioisotopes; D002245:Carbon Dioxide; D014978:Xenon; D009584:Nitrogen