![]() ![]() The meter has a marker that slides up the scale as you blow out. ![]() In simple terms this means how hard and quickly you blow air out of your lungs. Your doctor should normally state the make and type on your prescription, but the manufacturer of the peak flow meter is not important because they all do the same thing, which is measure your expiratory flow rate. Low range peak flow meters are designed for adults with low readings, and for children.Standard range peak flow meters are suitable for both adults and children.There are several different makes of peak flow meter and two different types known as low and standard range. You can also purchase one from a pharmacy. Some people may find it useful to have a peak flow meter to help them manage their asthma, so you could ask your doctor to prescribe one for you. It does not store any personal data.Peak flow meters are available on NHS prescription in the UK. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. In general, a normal peak flow rate can vary as much as 20 percent. It is easy to relate the three zones to the traffic light colors: green, yellow and red. Three zones of measurement are commonly used to interpret peak flow rates. Generally the numbers marked on the tube range from about 60 to around 800 (Peak Flow Meters with a smaller scale range are used for pediatrics). The basic structure of a Peak Flow Meter consists of a tube with a sliding indicator that moves along a scale marked in liters per minute. What is the normal range for peak flow meter? Stop what you are doing and immediately follow the Asthma Action Plan steps recommended by your doctor. Red Zone: “Danger” Your asthma is in the danger zone. Yellow Zone: “Caution” Your asthma is getting worse. Peak Flow Readings Green Zone: “Go” Your asthma is well controlled. Peak expiratory flow rate ( PEFR ) is estimated via one of these equations: Children PEFR = ((Height in cm – 100) x 5) + 100. The calculator allows input in either cm or inches, however, inches are transformed in cm that are used in the formula. An individual suffering with asthma would have a lower reading of 200-400 l/min. A reading of 400- 600 l/min is considered normal. The highest peak flow reading for an individual occurs between the age of 30-40 years. The taller a person is the higher their peak flow. A reading in this zone means that your asthma is under reasonably good control. It can also help you identify triggers, allergies, or infections that could be making your asthma worse.Ĩ0 to 100 percent of your usual or “normal” peak flow rate signals all clear. If you get a peak flow score that’s lower than your best score, it can act as an early warning sign and help you prevent an asthma attack. ![]()
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