What is a typical peak flow rate for adults with controlled asthma?

A typical peak flow rate for adults with controlled asthma is considered to be 80% or higher of their personal best. This threshold indicates that the individual's asthma is well-managed and that they are likely not experiencing significant airway obstruction or exacerbation.

Maintaining a peak flow rate at or above this level is crucial for individuals with asthma, as it reflects their ability to breathe freely and indicates that their asthma management strategies, including medication adherence and avoidance of triggers, are effective. Monitoring peak flow rates regularly helps in assessing asthma control and can alert the individual and their healthcare provider to potential issues before they escalate into an exacerbation.

In contrast, rates below this level signify worsening lung function and might warrant immediate review of the patient's asthma management plan.