title: [Simple lung function studies; assessment of effects].
abstract: In pediatric practice PEF and FEV1 measurements offer suitable information about the presence of bronchial obstruction. In the out-patient clinic PEF measurements can be performed with a Wright Peak Flow meter. Evaluation of symptoms and treatment at home can be done with a mini Wright Peak Flow meter and a diary card. Flow volume registration offers no essential extra information over spirometry. The severity of bronchoconstriction can be assessed by measuring the reversibility after a bronchodilator. Airway responsiveness to non-allergic stimuli can be determined by the histamine threshold and exercise testing. During an exacerbation of asthma PCO2 is increased due to disturbed ventilation and is a good measure for the severity of the condition. Blood gas measurements indicate the degree of disturbance in gas exchange and are therefore important to measure, especially during acute periods of bronchial obstruction.
mesh_terms: D000402:Airway Obstruction / Q000503:physiopathology; D001784:Blood Gas Analysis; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008449:Maximal Expiratory Flow-Volume Curves; D010366:Peak Expiratory Flow Rate; D010993:Plethysmography, Whole Body; D012129:Respiratory Function Tests; D013147:Spirometry
vernacular_title: Eenvoudig longfunctie-onderzoek; objectivering van effecten.