The following are features of bronchial asthma

A FEV1> 12% following administration of bronchodiiator
B FEV1> 15% decrease after 6 minutes of exercise
C Functional residual capacity is reduced
D > 20% diurnal variation > 2 days in a week for 2 weeks
E FEVI and FVC ratio is > 70%

Correct Answer: FEV1> 12% following administration of bronchodiiator, FEV1> 15% decrease after 6 minutes of exercise, Functional residual capacity is reduced

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