A 23-year-old male presents with periodic shortness of breath and wheezing.
A 23-year-old male presents with periodic shortness of breath and wheezing. This appears to be worse immediately after exercising and during spring and summer. Examination revealed a mild expiratory wheeze throughout both lungs. PEFR readings were low, with a diurnal variation on the peak flow diary.
Which of the following results are expected?
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