In patients with asthma, the PEF percent predicted correlates reasonably well with the percent predicted value for the forced expiratory volume in one second (FEV 1) and provides an …

Peak flow measurement is a quick test to measure air flow out of the lungs. The measurement is also called the peak expiratory flow rate (PEFR) or the peak expiratory flow (PEF). Peak flow …

A peak flow meter is a simple, easy-to-use device that measures how fast you can exhale a lungful of air. It helps manage asthma and can even indicate when your asthma is getting …

Asthma exacerbations can be classified as mild, moderate, severe, or life threatening. Criteria for exacerbation sever-ity are based on symptoms and physical examination parameters, as well …

It measures how well air moves out of your lungs in 1 large breath. This is called your peak expiratory flow. 1. Your peak flow numbers tell you how well your asthma is controlled. The …

Peak flow monitoring at home is indicated for patients older than 5 years with moderate to severe asthma, and gives physicians an objective assessment of airflow obstruction. A reading of …

Your asthma action plan will help you respond during an asthma attack. 1 Tests can help doctors diagnose, assess, and treat an asthma attack. Common tests for asthma – such as bloodwork, …

Find out about peak flow, how it is used to diagnose and monitor asthma, how to test your peak flow at home, and what your scores mean. What is peak flow? Peak flow is a measure of how …

According to the 2014 British Guidelines for Asthma, acute severe asthma is defined as the asthma exacerbation that presents with any of the following: PEF 33–50% best or predicted, …

In this article, the authors review evidence, guidance and current practice to provide a consensus approach to calculating and interpreting peak expiratory flow rate (PEFR) variability and …