What does a peak flow reading of 180 L/min indicate for a child with asthma?

A peak expiratory flow rate (PEFR) of 180 L/min in a child with asthma provides critical information about the child’s respiratory condition. In general, peak flow readings are a way to measure how well air moves out of the lungs, and they can help assess the severity of asthma control.

For children with asthma, peak flow measurements can vary based on their baseline readings. Typically, a reading below 80% of the child's personal best indicates inadequate asthma control. In many cases, a reading in the range of 180 L/min may signify that the child is experiencing a decrease in airway function, which could signal that immediate intervention is warranted to prevent further deterioration of their condition.

Using a short-acting inhaled beta2-agonist is a common and recommended response in such instances. These medications are designed to quickly relax the muscles around the airways, providing rapid relief from bronchoconstriction and improving airflow.

In contrast, indications of good asthma control, such as peak flow readings that are at or above 80% of the personal best, would not align with the reading of 180 L/min. Similarly, while inhaled cromolyn sodium may be part of a management plan for asthma, it is not a rescue