Lung function testing in children is useful to check whether children have bronchial asthma. Lung function testing in children involves the measurement of first-second forceful expiratory volume (FEV1), one-second rate (FEV1/FVC), percentage of FEV1 to its predicted value, and diurnal variability of peak expiratory flow rate.
Pulmonary function testing in children can check whether the child has bronchial asthma. Asthma is a reversible airway obstructive disease caused by airway smooth muscle spasm, airway mucosal edema, and increased mucus secretion, etc. When the airway is obstructed, the patient will have a series of respiratory function abnormalities, and therefore needs to undergo pulmonary function testing.
Performing pulmonary function testing in children to diagnose asthma involves testing the following four indices; first second forced expiratory volume (FEV1), one-second rate, percentage of FEV1 to its predicted value, and variability of diurnal peak expiratory flow rate (PEF).
If pulmonary function testing is needed in children, please follow the doctor’s instructions to improve the relevant examination and treatment.