Asthma exacerbation

An asthma exacerbation is an acute or subacute episode of progressively worsening respiratory impairment occurring in pediatric or adult patients with preexisting asthma Clinically, this episode is characterized by escalating dyspnea, wheezing, cough, and chest tightness, accompanied by an objective decrease from baseline in expiratory airflow metrics such as peak expiratory flow or forced expiratory volume in one second

It involves the lower respiratory tract and is driven pathophysiologically by heightened airway inflammation, acute bronchospasm, mucosal edema, and increased mucus hypersecretion

It involves the lower respiratory tract and is driven pathophysiologically by heightened airway inflammation, acute bronchospasm, mucosal edema, and increased mucus hypersecretion Clinically, this episode is characterized by escalating dyspnea, wheezing, cough, and chest tightness, accompanied by an objective decrease from baseline in expiratory airflow metrics such as peak expiratory flow or forced expiratory volume in one second

Clinically, this episode is characterized by escalating dyspnea, wheezing, cough, and chest tightness, accompanied by an objective decrease from baseline in expiratory airflow metrics such as peak expiratory flow or forced expiratory volume in one second