The patient presents with an episode of expiratory wheezing,dyspnea,and use of accessory muscles of ventilation.What is the most likely cause?

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The symptoms described (expiratory wheezing, dyspnea, and use of accessory muscles of ventilation) are classic features of an asthma exacerbation. COPD may also cause wheezing and dyspnea, but the use of accessory muscles is less common. Restrictive diseases, such as interstitial lung disease, typically cause difficulty with inspiration rather than expiration. Cystic fibrosis may cause wheezing and dyspnea, but typically presents earlier in life and is associated with recurrent pulmonary infections.

The Patient Presents with an Episode of Expiratory Wheezing,dyspnea,and Use