AANP Adult Gerontology Primary Care Nurse Practiotioner Practice

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What does a peak expiratory flow rate (PEF) of 80-100% indicate for an asthma patient?

Severe asthma exacerbation

Green Zone, maintain treatment

A peak expiratory flow rate (PEF) of 80-100% indicates that the patient's lung function is within the expected range and suggests controlled asthma. This measurement falls within the "Green Zone," which is characterized by good control of asthma symptoms. In this zone, patients are encouraged to maintain their current treatment regimen, as they are effectively managing their condition. Regular monitoring of PEF can help patients recognize when they are stable and when changes in their condition may necessitate adjustments to their management plan.

In contrast, PEF readings that fall below this range would typically indicate a worsening of asthma, warranting an increase in therapy or a need for emergency action, depending on severity. Thus, understanding PEF readings helps in the ongoing management of asthma and in fostering patient engagement in their own health care.

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Yellow Zone, increase maintenance therapy

Red Zone, call emergency services

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