The Estimated/Expected Peak Expiratory Flow (Peak Flow) quantifies asthma exacerbation severity. The Estimated/Expected Peak Expiratory Flow (Peak Flow) quantifies asthma exacerbation severity. Calc Function ; Calcs that help predict probability of a disease Diagnosis. The change in scale for peak flow meters will result in PEF readings that are different, depending on whether the individual has used a Wright scale meter, or the new EU scale meter. Sometimes, it is useful for health professionals to have a guide as to what peak flow could be expected from each individual, if they didn't have asthma.
PEAK EXPIRATORY FLOW RATE - NORMAL VALUES For use with EU/EN13826 scale PEF meters only Adapted by Clement Clarke for use with EN13826 / EU scale peak flow meters from Nunn AJ Gregg I, Br Med J 1989:298;1068 -70 In me n, readings up to 100 L/min lower than predicted are within normal limits. For women, the equivalent figure is 85. Guide to Asthma Appendix 2: Tables of normal peak flow values* Women can have peak flow values as low as 80 liters/minute less than the average value shown and still fall within the normal range. To calculate a "normal" value for a healthy person of a given age and height.
A peak flow meter measures the rate at which air is exhaled. Normal readings of peak flow meters are dependent on a person's age, sex, and height. There are several factors which affect the readings, including smoking, asthma, and other lung conditions. Peak flow meters come in two ranges to measure the air pushed out of your lungs. A low-range peak flow meter is for small children, and a standard-range peak flow meter is for older children, teenagers and adults. An adult has much larger airways than a child and needs the larger range. There are several types of peak flow meters available.
How does this peak flow calculator work? This is a quick health tool that determines the estimated or predicted peak flow based on your data. You need to select your gender and input your age and height. The former can be put in either metric (cm) or English (inches) measurement. Knowing your normal peak flow rate is an important part of asthma treatment, handling an asthma attack, and part of your asthma care plan.Measuring your peak flow is simple using a peak flow meter, a portable, handheld device that measures how quickly your lungs expel air during a forceful exhalation after you fully inhale.