For a patient in the yellow zone of an asthma action plan, what is the peak flow range?

In the context of an asthma action plan, the yellow zone indicates that the patient's peak flow readings are not at their best and may suggest worsening asthma control. The peak flow range for the yellow zone is typically defined as 50-80% of the individual's personal best. This range indicates that the patient is experiencing some degree of airflow obstruction and may need to initiate their action plan, which could include the use of a rescue inhaler or other measures to manage their asthma symptoms.

Understanding the different zones in an asthma action plan is important for proper management. The green zone represents 80-100% of personal best peak flow readings, indicating good control of asthma symptoms. In contrast, the red zone, which is below 50%, signals a medical emergency and requires immediate intervention. Therefore, identifying the yellow zone (50-80%) is crucial for making appropriate decisions regarding treatment and further evaluation.