What is the primary function of a peak flowmeter in asthma management?

The primary function of a peak flowmeter in asthma management is to determine peak flow rates for medication adjustment. This tool measures how quickly air can be expelled from the lungs, which is an important indicator of airway obstruction and overall lung function in individuals with asthma. By monitoring peak flow readings, patients can identify their baseline measurements and recognize when their lung function is declining, often before experiencing noticeable symptoms. This information is critical for making informed decisions about when to adjust asthma medications, such as bronchodilators or corticosteroids, to prevent exacerbations and maintain control of their condition. This proactive approach facilitates timely interventions and personalized asthma management, ultimately leading to improved patient outcomes.