JHS Medical
Preview
Open in TheBrain
Medical
Pediatrics
Asthma
Spirometry results, Asthma
Parents
Asthma
Children
decline in FEV1 > 15% post exercise
diurnal variation of FEV1
FEV1/FVC ratio is < 0.8
low FEV1
Peak Expiratory Flow > 20%
post bronchodilator, increase of 12% in FEV1 or 200mL