{"id":7143,"date":"2012-04-22T13:52:47","date_gmt":"2012-04-22T13:52:47","guid":{"rendered":"http:\/\/cardiophile.org\/?p=7143"},"modified":"2012-04-22T13:52:47","modified_gmt":"2012-04-22T13:52:47","slug":"ecg-settings","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/","title":{"rendered":"ECG settings &#8211; Practical importance"},"content":{"rendered":"<h2><span style=\"color: #008000;\">ECG settings &#8211; Practical importance<\/span><\/h2>\n<p><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/GetQ_SWHJLI\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"><\/iframe><br \/>\nRecording paper speed is usually set to 25 millimeters per second. Higher speed recordings may be taken on demand at 50 millimeters per second. Much higher speed settings like 100 millimeters per second or 200 millimeters per second are usual with intracardiac ECG recordings during electrophysiology studies. This is for better delineation of intervals between intracardiac electrograms. Usual ECG recordings are calibrated with a 1 millivolt square wave pulse to yield one centimeter deflection on the Y-axis. Double standardization or double voltage recordings can be made to visualize P wave better in some situations. The interval between various ECG waves and their voltages can be calculated only if the settings are known. Notch filter is meant to neutralize the 50 cycle interference due to the line voltage. In regions where a 60 cycle alternating current is available, the notch filter will be set to 60 Hz. High pass filter allows signals with a frequency higher than the set value to pass through to the recorder and a low pass filter will allow signals below the set value. High pass filter filters out respiratory variations which are of low frequency while low pass filters remove high frequency artefacts like those due to electromyogram interference. Low pass filters may also remove pacemaker (pulse generator) stimulus artefacts. This is why digital ECG may sometimes be inferior to analogue ECG in detecting pacemaker artefacts. Now algorithms are available to specifically detect and mark pacemaker stimulus artefacts. Non optimal filter settings can affect the ECG signal depending on the frequency components of the signals. QRS complexes which have relatively higher frequency components are affected by low settings of low pass filters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ECG settings: Usual recording paper speed is 25 mm\/s and voltage (Y-axis) calibration is 1 cm to 1 mV. Higher speed recordings when needed.<\/p>\n","protected":false},"author":1,"featured_media":39308,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-7143","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecg-electrophysiology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ECG settings - usual speed 25 m\/s and 1 mV to 1 cm calibration<\/title>\n<meta name=\"description\" content=\"ECG settings: Usual recording paper speed is 25 mm\/s and voltage (Y-axis) calibration is 1 cm to 1 mV. Higher speed recordings when needed.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ECG settings - usual speed 25 m\/s and 1 mV to 1 cm calibration\" \/>\n<meta property=\"og:description\" content=\"ECG settings: Usual recording paper speed is 25 mm\/s and voltage (Y-axis) calibration is 1 cm to 1 mV. Higher speed recordings when needed.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/\" \/>\n<meta property=\"og:site_name\" content=\"All About Cardiovascular System and Disorders\" \/>\n<meta property=\"article:published_time\" content=\"2012-04-22T13:52:47+00:00\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"headline\":\"ECG settings &#8211; Practical importance\",\"datePublished\":\"2012-04-22T13:52:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/\"},\"wordCount\":278,\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/#primaryimage\"},\"thumbnailUrl\":\"\",\"articleSection\":[\"ECG \\\/ Electrophysiology\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/\",\"name\":\"ECG settings - usual speed 25 m\\\/s and 1 mV to 1 cm calibration\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/#primaryimage\"},\"thumbnailUrl\":\"\",\"datePublished\":\"2012-04-22T13:52:47+00:00\",\"description\":\"ECG settings: Usual recording paper speed is 25 mm\\\/s and voltage (Y-axis) calibration is 1 cm to 1 mV. Higher speed recordings when needed.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/#primaryimage\",\"url\":\"\",\"contentUrl\":\"\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/ecg-settings\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ECG settings &#8211; Practical importance\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#website\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/\",\"name\":\"All About Cardiovascular System and Disorders\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/#\\\/schema\\\/person\\\/5441d907049b914770f4bd98fb57feec\",\"name\":\"Johnson Francis\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\",\"caption\":\"Johnson Francis\"},\"logo\":{\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g\"},\"description\":\"Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/professional\\\/author\\\/jf\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"ECG settings - usual speed 25 m\/s and 1 mV to 1 cm calibration","description":"ECG settings: Usual recording paper speed is 25 mm\/s and voltage (Y-axis) calibration is 1 cm to 1 mV. Higher speed recordings when needed.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/","og_locale":"en_US","og_type":"article","og_title":"ECG settings - usual speed 25 m\/s and 1 mV to 1 cm calibration","og_description":"ECG settings: Usual recording paper speed is 25 mm\/s and voltage (Y-axis) calibration is 1 cm to 1 mV. Higher speed recordings when needed.","og_url":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/","og_site_name":"All About Cardiovascular System and Disorders","article_published_time":"2012-04-22T13:52:47+00:00","author":"Johnson Francis","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Johnson Francis","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/#article","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/"},"author":{"name":"Johnson Francis","@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec"},"headline":"ECG settings &#8211; Practical importance","datePublished":"2012-04-22T13:52:47+00:00","mainEntityOfPage":{"@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/"},"wordCount":278,"publisher":{"@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec"},"image":{"@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/#primaryimage"},"thumbnailUrl":"","articleSection":["ECG \/ Electrophysiology"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/","url":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/","name":"ECG settings - usual speed 25 m\/s and 1 mV to 1 cm calibration","isPartOf":{"@id":"https:\/\/johnsonfrancis.org\/professional\/#website"},"primaryImageOfPage":{"@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/#primaryimage"},"image":{"@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/#primaryimage"},"thumbnailUrl":"","datePublished":"2012-04-22T13:52:47+00:00","description":"ECG settings: Usual recording paper speed is 25 mm\/s and voltage (Y-axis) calibration is 1 cm to 1 mV. Higher speed recordings when needed.","breadcrumb":{"@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/#primaryimage","url":"","contentUrl":""},{"@type":"BreadcrumbList","@id":"https:\/\/johnsonfrancis.org\/professional\/ecg-settings\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/johnsonfrancis.org\/professional\/"},{"@type":"ListItem","position":2,"name":"ECG settings &#8211; Practical importance"}]},{"@type":"WebSite","@id":"https:\/\/johnsonfrancis.org\/professional\/#website","url":"https:\/\/johnsonfrancis.org\/professional\/","name":"All About Cardiovascular System and Disorders","description":"","publisher":{"@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/johnsonfrancis.org\/professional\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":["Person","Organization"],"@id":"https:\/\/johnsonfrancis.org\/professional\/#\/schema\/person\/5441d907049b914770f4bd98fb57feec","name":"Johnson Francis","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g","caption":"Johnson Francis"},"logo":{"@id":"https:\/\/secure.gravatar.com\/avatar\/80861b82c3f559be9e413245c5643b6c483c93495507facfe32cf96ccd8bcffd?s=96&d=mm&r=g"},"description":"Former Professor of Cardiology, Calicut Govt. Medical Kozhikode, Kerala, India. Editor-in-Chief, BMH Medical Journal","url":"https:\/\/johnsonfrancis.org\/professional\/author\/jf\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/posts\/7143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/comments?post=7143"}],"version-history":[{"count":0,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/posts\/7143\/revisions"}],"wp:attachment":[{"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/media?parent=7143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/categories?post=7143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/johnsonfrancis.org\/professional\/wp-json\/wp\/v2\/tags?post=7143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}