Peak Expiratory Flow (PEF), also called Peak Expiratory Flow Rate (PEFR) is a person's maximum speed of expiration, as measured with a peak flow meter like.
A peak flow meter is a portable, inexpensive, hand-held device An adult has much larger airways than a child and needs the larger range.
A chart called a 'nomogram' can be used to estimate your predicted peak flow if you are male or female, your age and height. It is important to remember that.
The experts at WebMD explain how to manage your asthma using a peak flow meter.
The change in scale for peak flow meters will result in PEF readings that are different, depending on Download the Adult Normal Values chart, Filesize: 52 Kb.