The journal publishes 6 issues per year, mainly about respiratory system diseases in adults and clinical research. This work can range from peer-reviewed original articles to review articles, editorials, and opinion articles. The journal is printed in English, and is freely available in its web page as well as in Medline and other databases. The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two receding years. CiteScore measures average citations received per document published.
A peak flow meter is a small plastic device with a measuring gauge along the side, which measures how fast you can blow air out of your lungs. People with asthma can use the meter to get baseline measurements of their normal peak flow, which can then be used to:. A peak flow meter will tell you how well your lungs are functioning. However, it is not a standalone tool and it should be used in conjunction with the following symptom assessment:. Initially, you should take your peak flow readings before using your inhalers every morning and again in the evening, for two weeks. Your doctor can then see if your values are as high as they should be. When you are well and your peak flow reading is at its best and steady, you won't have to use your meter every day.
Determines the predicted maximum speed of expiration based on age, gender and height and compares it to the measured PEFR. In the text below the tool there is more information about the formulas used and about peak expiratory flow. The peak flow calculator determines the PEFR peak expiratory flow rate , which is the maximum speed of expiration of a person. With the help of this calculator the estimated value based on subject age, gender and height can be compared to that obtained via physical measurement with a peak flow meter. Peak expiratory flow is estimated via one of the three formulas, depending on whether the patient is a child, adult female or male.
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Analysis of agreement between peak expiratory flow meters and comparison of reference values. The peak expiratory flow PEF is a practical method that evaluates the caliber of the proximal airways. The ease in handling and the low cost of portable PEF meters made their use frequent.