title: Pulmonary function in asthmatic patients in remission.
abstract: Thirty-five asthmatic patients (average age 28 years) who attended a pulmonary function laboratory when their mean ratio of forced expiratory volume in one second: forced vital capacity was 81 per cent (within the normal range for their age group) had arterial hypoxaemia and hypocapnia. These were probably secondary to lung hyperinflation and pulmonary ventilation/perfusion imbalance. The pulmonary abnormalities of bronchial asthma are not always detected by simple spirometric tests and the results of such tests should be interpreted cautiously.
mesh_terms: D000328:Adult; D001249:Asthma / Q000503:physiopathology*; D002245:Carbon Dioxide / Q000097:blood; D002908:Chronic Disease; D004418:Dyspnea, Paroxysmal; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007040:Hypoventilation; D000860:Hypoxia / Q000097:blood; D008168:Lung / Q000503:physiopathology*; D008297:Male; D010100:Oxygen / Q000097:blood; D010313:Partial Pressure; D011653:Pulmonary Diffusing Capacity; D012075:Remission, Spontaneous; D012119:Respiration; D012129:Respiratory Function Tests; D013147:Spirometry; D014692:Ventilation-Perfusion Ratio; D014797:Vital Capacity
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen