Using A Peak Flow Meter

<!DOCTYPE html> <html lang="en" itemscope itemtype="http://schema.org/Article"> <head> <link rel="preconnect" href="https://d2jx2rerrg6sh3.cloudfront.net" /> <link rel="preconnect" href="https://use.typekit.net" /> <link rel="preconnect" href="https://p.typekit.net" /> <link rel="preconnect" href="https://cdn-ukwest.onetrust.com" /> <link rel="preconnect" href="https://securepubads.g.doubleclick.net" /> <link rel="preconnect" href="https://pagead2.googlesyndication.com" /> <link rel="preconnect" href="https://www.googletagmanager.com" /> <link rel="preconnect" href="https://js.trendmd.com" /><meta charset="utf-8" /><meta http-equiv="X-UA-Compatible" content="IE=edge" /><meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1" /><title> Using A Peak Flow Meter </title> <link rel="canonical" href="https://www.news-medical.net/health/Using-A-Peak-Flow-Meter.aspx" /> <link itemprop="mainEntityOfPage" href="https://www.news-medical.net/health/Using-A-Peak-Flow-Meter.aspx" /> <meta itemprop="description" content="A peak flow meter is a user-friendly, portable device that helps measure the ability of the lungs to expel air. It estimates peak expiratory flow rate which is a measure of how rapidly air can be exhaled from your lungs, after taking a deep breath. This gives an idea about how well air is moving through the airways. In cases like asthma-related bronchoconstriction, peak flow levels will be low. Peak flow measurements at regular intervals help keep track of the level of control of asthma by detecting the narrowing of airways before symptoms occur." /> <meta itemprop="datePublished" content="2009-07-17T05:58:00-04:00" /> <meta itemprop="dateModified" content="2022-12-30T04:24:00-05:00" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:site" content="@NewsMedical" /> <meta name="twitter:title" content="Using A Peak Flow Meter" /> <meta name="twitter:description" content="A peak flow meter is a user-friendly, portable device that helps measure the ability of the lungs to expel air. It estimates peak expiratory flow rate which is a measure of how rapidly air can be exhaled from your lungs, after taking a deep breath. This gives an idea about how well air is moving through the airways. In cases like asthma-related bronchoconstriction, peak flow levels will be low. Peak flow measurements at regular intervals help keep track of the level of control of asthma by detecting the narrowing of airways before symptoms occur." /> <meta name="twitter:image:src" content="https://d2jx2rerrg6sh3.cloudfront.net/image-handler/picture/2014/7/Asthma-620x480.jpg" /> <meta property="og:title" content="Using A Peak Flow Meter" /> <meta property="og:type" content="article" /> <meta property="og:image" content="https://d2jx2rerrg6sh3.cloudfront.net/image-handler/picture/2014/7/Asthma-620x480.jpg" /> <meta property="og:url" content="https://www.news-medical.net/health/Using-A-Peak-Flow-Meter.aspx" /> <meta property="og:description" content="A peak flow meter is a user-friendly, portable device that helps measure the ability of the lungs to expel air. It estimates peak expiratory flow rate which is a measure of how rapidly air can be exhaled from your lungs, after taking a deep breath. This gives an idea about how well air is moving through the airways. In cases like asthma-related bronchoconstriction, peak flow levels will be low. Peak flow measurements at regular intervals help keep track of the level of control of asthma by detecting the narrowing of airways before symptoms occur." /> <meta property="og:site_name" content="News-Medical" /> <meta property="article:published_time" content="2009-07-17T05:58:00-04:00" /> <meta property="article:modified_time" content="2022-12-30T04:24:00-05:00" /> <meta property="article:section" content="Health Articles" /> <meta property="article:author" content="Susha Cheriyedath, M.Sc." /> <meta property="fb:app_id" content="191532917554431" /> <meta name="referrer" content="unsafe-url" /><meta name="robots" content="max-snippet:-1, max-image-preview:large, max-video-preview:-1" /> <script type="text/javascript"> window.g_siteSection = 'medical'; window.g_hasSiteSections = true; window.g_cmpKind = 2; window.g_isIabTcfInUse = false; window.g_isIabGppInUse = false; window.bStrictCookies = undefined; window.g_cookiePolicyStatus = undefined; window.g_noAdSense = false; window.g_havePublishable = true; 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title="Email" target="_blank"> <div class="share-wrapper"> <div aria-hidden="true" class="icon icon-envelop"></div> </div> </a> </li> </ul> </div> <div class="item-body content-item-body"> <div class="h1-wrap"> <h1 itemprop="headline">Using A Peak Flow Meter</h1> </div> <div class="in-content-ctas-container in-content-ctas-container-top"> <div class="in-content-ctas in-content-ctas-top cta-btns-cols-1"> <ul> <li class="cta-printpdf"><a href="#" class="request-pdf-download" onclick="return false;"><span class="cta-text"><span>Download</span> <span>PDF Copy</span></span></a></li> </ul> </div> </div> <div class="content"> <div id="ctl00_cphBody_divText" itemprop="articleBody" class="clearfix"><div id="mobile-top-promo-spot" class="mobile-promo-wrap mobile-promo-leaderboard-320"> <div class="mobile-promo-item sponsorer-note-bottom" id='div-gpt-mobile-top-leaderboard' style='width:320px; min-height:65px; text-align: center;'> <script type='text/javascript'> if (g_displayableSlots.mobileTopLeaderboard) { pushDisplayAd(function() { googletag.display('div-gpt-mobile-top-leaderboard'); }); } </script> </div> </div><div class="article-meta article-meta-byline article-meta-with-photo article-meta-author-and-reviewer" itemprop="author" itemscope itemtype="http://schema.org/Person"><span class="article-meta-photo-wrap"><img src="https://www.azonetwork.com/themes/clients/images/team/SushPic_(002).jpg" alt="Susha Cheriyedath, M.Sc." itemprop="image" class="article-meta-photo" /></span><span class="article-meta-contents"><span class="article-meta-left"><span class="article-meta-author">By <a href="/medical/authors/susha-cheriyedath" itemprop="url"><span itemprop="name">Susha Cheriyedath, M.Sc.</span></a><meta itemprop="sameAs" content="https://www.linkedin.com/in/sushalinked/" /></span><span class="article-meta-reviewer">Reviewed by <a href="/medical/authors/damien-jonas-wilson">Dr. Damien Jonas Wilson, MD</a></span></span></span></div> <p>A peak flow meter is a user-friendly, portable device that helps measure the ability of the lungs to expel air. It estimates peak expiratory flow rate which is a measure of how rapidly air can be exhaled from your lungs, after taking a deep breath. This gives an idea about how well air is moving through the airways. In cases like asthma-related bronchoconstriction, peak flow levels will be low. Peak flow measurements at regular intervals help keep track of the level of control of asthma by detecting the narrowing of airways before symptoms occur.</p> <div id="ytp-77e363a15b074371abc6fab2703579c5" class="video-lazy-load azo-yt-player" style="background-image:url(https://i.ytimg.com/vi/CrZPvtdX6go/maxresdefault.jpg);padding-top:56.271186%;" data-video-url="https://www.youtube.com/embed/CrZPvtdX6go?rel=0&enablejsapi=1" data-orig-embed-width="590" data-orig-embed-height="332"><span class="video-lazy-load-title">Peak Flow Meter</span><button><i class="icon-play3"></i><span>Play</span></button></div> <h2>Taking Peak Flow Reading</h2> <p>The steps involved in using a peak flow meter are outlined below:</p> <ul> <li>Stand or sit upright.</li> <li>Slide the marker down to the bottom of the numbered scale.</li> <li>Take a deep breath and fill your lungs up.</li> <li>Put the mouthpiece in your mouth and close your lips.</li> <li>Blow out air from your lungs as fast as you can.</li> <li>Peak flow meter shows a reading. Note it down.</li> <li>Repeat the above steps a couple of times and write down the highest of the three readings.</li> <li>Check the peak flow zone corresponding to the peak flow number.</li> <li>See the treatment plan for appropriate measures to take while in each zone.</li> </ul> <h2>Personal Best Peak Flow Number</h2> <p>The aim of peak flow measurement is to find one’s personal best peak flow number.</p> <p>In order to find the personal best peak flow number, peak flow measurements need to be done every 2 to 3 weeks. This is best done during a period when asthma is under control and asthma symptoms are not present.</p> <p>Peak flow should be measured at the same time every day. Write down the number shown during each peak flow reading. One’s personal best would be the highest peak flow number recorded during a 2 to 3 week period. Personal best peak flow number keeps changing over time.</p><div id="mobile-middle-mrec-promo-spot" class="mobile-promo-wrap mobile-promo-mrec"> <div class="mobile-promo-item sponsorer-note-bottom" id='div-gpt-mobile-middle-mrec' style='width:300px; height:250px;'> <script type='text/javascript'> if (g_displayableSlots.mobileMiddleMrec) { pushDisplayAd(function() { googletag.display('div-gpt-mobile-middle-mrec'); }); } </script> </div> </div>  <h2>Peak Flow Zones</h2> <p>Peak flow zones are based on the personal best peak flow number and help monitor and control asthma with timely treatment. There are 3 peak flow zones, the colors of which are based on the colors in a traffic light.</p> <div id="trendmd-conditional-suggestions" class="related-content-embed"></div><div class="related-content-embed related-stories-embed"><h3>Related Stories</h3><ul><li><a href="/news/20250204/Asthma-and-antibiotic-use-increase-the-likelihood-of-revision-sinus-surgery.aspx">Asthma and antibiotic use increase the likelihood of revision sinus surgery</a></li><li><a href="/news/20241210/Financial-hardship-still-prevents-many-asthma-patients-from-taking-medications.aspx">Financial hardship still prevents many asthma patients from taking medications</a></li><li><a href="/news/20241127/New-injection-treatment-could-be-a-game-changer-for-people-with-asthma-and-COPD.aspx">New injection treatment could be a game-changer for people with asthma and COPD</a></li></ul></div><ul> <li>Green zone refers to 80-100% of normal peak flow and usually indicates good control of asthma.</li> <li>Yellow zone refers to 50-80% of normal peak flow and cautions that asthma is getting worse.</li> <li>Red zone indicates less than 50% of normal peak flow and warns about an upcoming asthma attack and the need for immediate medical intervention.</li> </ul> <h2>Peak Flow Measurements and Asthma Monitoring</h2> <p>Peak flow meter helps keep track of asthma in several ways. Record a peak flow meter reading every morning. Check this peak flow number against that mentioned on the action plan given by the physician to ensure asthma is under control.</p> <p><a href="/health/Asthma-Attacks.aspx" class="linked-term">During an asthma attack</a>, first, treat the attack with an inhaler or prescribed therapy and then take the peak flow reading. This helps in determining if the medicine is working or if the treatment plan needs to be changed.</p> <h2>Who Should Use a Peak Flow Meter?</h2> <p>Peak flow meter usage immensely benefits people with asthma by helping them adjust daily asthma medication and the overall treatment plan. A peak flow meter can be used by adults as well as children aged 5 or above. Other than asthmatic people, some people suffering from emphysema and chronic bronchitis may also benefit from using a peak flow meter. Healthcare providers recommend the use of peak flow meters mainly in people having moderate and severe asthma. A peak flow meter may not be very useful in the management of mild asthma.</p> <h2>References</h2> <ul> <li><a href="https://www.mayoclinic.org/" target="_blank" rel="noopener">https://www.mayoclinic.org/</a></li> <li><a href="https://www.nlm.nih.gov/medlineplus/ency/patientinstructions/000043.htm" rel="noopener">https://www.nlm.nih.gov/medlineplus/ency/patientinstructions/000043.htm</a></li> <li><a href="https://www.lung.org/" target="_blank" rel="noopener">https://www.lung.org/</a></li> <li><a href="https://www.asthma.org.uk/advice/diagnosis/tests/" rel="noopener">https://www.asthma.org.uk/advice/diagnosis/tests/</a></li> </ul> <h2>Further Reading</h2><ul class="further-reading-list"><li><a href="/?tag=/Asthma">All Asthma Content</a></li><li><a href="/health/Asthma.aspx">Asthma</a></li><li><a href="/health/Childhood-Asthma.aspx">Childhood Asthma</a></li><li><a href="/health/Signs-of-Asthma-Attack.aspx">Signs of Asthma Attack</a></li><li><a href="/health/Asthma-Symptoms.aspx">Asthma Symptoms</a></li></ul><div id="further-reading-link"><a data-current-relative-link="/health/Using-A-Peak-Flow-Meter.aspx" data-further-reading-tags="Asthma" href="#" onclick="return Azom.getFurtherReadingLinks(this);">More...</a></div><script type='text/javascript'> $(function() { Azom.wireUpVideoThumbnailLazyLoading(); }); </script> <div id="mobile-bottom-promo-spot" class="mobile-promo-wrap mobile-promo-leaderboard-320"> <div class="mobile-promo-item sponsorer-note-bottom" id='div-gpt-mobile-bottom-leaderboard' style='width:320px; min-height:50px; text-align: center;'> <script type='text/javascript'> if (g_displayableSlots.mobileBottomLeaderboard) { pushDisplayAd(function() { googletag.display('div-gpt-mobile-bottom-leaderboard'); }); } </script> </div> </div></div> <p class='updated-dates'> Last Updated: Dec 30, 2022 </p> </div> <div class="ratingcontainer" style="visibility:hidden" data-id="81a9ef20-2d3f-4192-91e5-842dd19b4105" data-raters="1" data-rating="5.0" data-page-location="BottomOfContent"></div> <div class="row author-bio-section-thumbnail" data-author-slug="susha-cheriyedath"><div class="authorImage col-xs-12 col-md-2"><img src="https://www.azonetwork.com/themes/clients/images/team/SushPic_(002).jpg" alt="Susha Cheriyedath"/></div><div class="authorInfo col-xs-12 col-md-10"><p>Written by</p><h3><a href="https://www.news-medical.net/medical/authors/susha-cheriyedath">Susha Cheriyedath</a></h3><p>Susha is a scientific communication professional holding a Master's degree in Biochemistry, with expertise in Microbiology, Physiology, Biotechnology, and Nutrition. After a two-year tenure as a lecturer from 2000 to 2002, where she mentored undergraduates studying Biochemistry, she transitioned into editorial roles within scientific publishing. She has accumulated nearly two decades of experience in medical communication, assuming diverse roles in research, writing, editing, and editorial management.</p></div></div> <div class="in-content-ctas-container in-content-ctas-container-bottom"> <div class="in-content-ctas in-content-ctas-bottom cta-btns-cols-1"> <ul> <li class="cta-printpdf"><a href="#" class="request-pdf-download" onclick="return false;"><span class="cta-text"><span>Download</span> <span>PDF Copy</span></span></a></li> </ul> </div> </div> <div class="csi-590-80-wrap"> <ins class="adsbygoogle csi-590-80 sponsorer-note-bottom-2" style="display:inline-block;" data-ad-client="ca-pub-8430344808469242" data-ad-slot="6986242780"></ins> </div> <div style="display:none;" itemprop="publisher" itemscope itemtype="https://schema.org/Organization"> <div itemprop="logo" itemscope itemtype="https://schema.org/ImageObject"> <meta itemprop="url" content="https://www.news-medical.net/themes/Standard/images/amp_site_logo.jpg" /> <meta itemprop="width" content="600" /> <meta itemprop="height" content="56" /> </div> <meta itemprop="name" content="News-Medical" /> <meta itemprop="url" content="https://www.news-medical.net/" /> </div> </div> <div class="content-citations-wrapper"><h2><a href="#" onclick="return Azom.showContentCitations(this);">Citations <span class="icon-circle-down"></span></a></h2><div class="content-citations-section"><p>Please use one of the following formats to cite this article in your essay, paper or report:</p><ul class="citation-list"><li class="citation-item"><p class="citation-format">APA</p><p>Cheriyedath, Susha. (2022, December 30). Using A Peak Flow Meter. News-Medical. Retrieved on March 03, 2025 from https://www.news-medical.net/health/Using-A-Peak-Flow-Meter.aspx.</p></li><li class="citation-item"><p class="citation-format">MLA</p><p>Cheriyedath, Susha. "Using A Peak Flow Meter". <em>News-Medical</em>. 03 March 2025. <https://www.news-medical.net/health/Using-A-Peak-Flow-Meter.aspx>.</p></li><li class="citation-item"><p class="citation-format">Chicago</p><p>Cheriyedath, Susha. "Using A Peak Flow Meter". News-Medical. https://www.news-medical.net/health/Using-A-Peak-Flow-Meter.aspx. (accessed March 03, 2025).</p></li><li class="citation-item"><p class="citation-format">Harvard</p><p>Cheriyedath, Susha. 2022. <em>Using A Peak Flow Meter</em>. News-Medical, viewed 03 March 2025, https://www.news-medical.net/health/Using-A-Peak-Flow-Meter.aspx.</p></li></ul></div></div> <div id="trendmd-suggestions"></div> <div class="recommended-content below-content-recommends"> <h2>Suggested Reading</h2> <div class="col-xs-12 col-ms-4 col-sm-3 col-md-3 recommended-item"><div class="col-xs-4 col-ms-12 col-sm-12 rc-img"><a href="/news/20241219/Nasal-fungi-differ-in-people-with-allergies-and-asthma.aspx"><img class="lazy-load-image" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" data-src="https://d2jx2rerrg6sh3.cloudfront.net/images/news/ImageForNews_798686_45645321927800934234-125x110.jpg" alt="Nasal fungi differ in people with allergies and asthma" style="height:110px;" /></a></div><div class="col-xs-8 col-ms-12 col-sm-12 rc-text"><div><a href="/news/20241219/Nasal-fungi-differ-in-people-with-allergies-and-asthma.aspx">Nasal fungi differ in people with allergies and asthma</a></div></div></div><div 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