[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-364407-105":59,"doc-detail-364407-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","ecg-rhythm-study-guide","ECG Rhythm Study Guide","","ECG Rhythm Study Guide explains how to recognize common cardiac rhythm patterns on an electrocardiogram. It describes what to look for regarding rhythm regularity, heart rate ranges, QRS duration, visibility and timing of P waves, and PR interval characteristics. The guide covers normal sinus rhythm and key abnormalities including sinus bradycardia, sinus tachycardia, supraventricular tachycardia, atrial fibrillation, atrial flutter, and different degrees of AV block, with brief clinical context for each.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/ecg-rhythm-study-guide/364407/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/ecg-rhythm-study-guide/364407.png","ImageObject",300,407,{"name":92,"@type":93},"Franzy","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-27","2026-09-23",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",15,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What ECG features define a normal sinus rhythm?","Question",{"text":113,"@type":114},"The rhythm is regular with a rate between 60–100 bpm, normal QRS duration, visible P wave before each QRS complex, and a normal PR interval.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How is sinus bradycardia identified on an ECG?",{"text":118,"@type":114},"Sinus bradycardia shows a regular rhythm with a rate below 60 bpm, normal QRS duration, P wave visible before each QRS complex, and a normal PR interval.",{"name":120,"@type":111,"acceptedAnswer":121},"What ECG findings suggest atrial fibrillation?",{"text":122,"@type":114},"Atrial fibrillation typically shows an irregularly irregular rhythm, a usually 100–160 bpm rate (slower if on medication), normal QRS duration, P waves not distinguishable, and PR interval not measurable.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},364407,1790246921,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":44,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},2336478945519,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","ECG Rhythm Study Guide  \nNormal Sinus Rhythm  \nLooking at the ECG you'll see that:  \n􀁸 Rhythm ‐ Regular  \n􀁸 Rate ‐ (60‐100 bpm)  \n􀁸 QRS Duration ‐ Normal  \n􀁸 P Wave ‐ Visible before each QRS complex  \n􀁸 P‐R Interval ‐ Normal (\u003C5 small Squares. Anything above and this would be 1st degree block)  \n􀁸 Indicates that the electrical signal is generated by the sinus node and travelling in a normal fashion in the heart.  \nSinus Bradycardia  \nA heart rate less than 60 beats per minute (BPM) . This in a healthy athletic person maybe 'normal', but other causes may be due to increased vagal tone from drug abuse, hypoglycemia and brain injury with increase intracranial pressure (ICP) as examples Looking at the ECG you'll see that:  \n􀁸 Rhythm ‐ Regular  \n􀁸 Rate ‐ less than 60 beats per minute  \n􀁸 QRS Duration ‐ Normal  \n􀁸 P Wave ‐ Visible before each QRS complex  \n􀁸 P‐R Interval ‐ Normal  \n􀁸 Usually benign and often caused by patients on beta blockers  \n[www.lifesavercpr.net](www.lifesavercpr.net) (209) 499‐2249 [LifeSaverCPR@hotmail.com](LifeSaverCPR@hotmail.com)  \nSinus Tachycardia  \nAn excessive heart rate above 100 beats per minute (BPM) which originates from the SA node. Causes include stress, fright, illness and exercise. Not usually a surprise if it is triggered in response to regulatory changes e.g. shock. But if there is no apparent trigger then medications may be required to suppress the rhythm  \nLooking at the ECG you'll see that:  \n􀁸 Rhythm ‐ Regular  \n􀁸 Rate ‐ More than 100 beats per minute  \n􀁸 QRS Duration ‐ Normal  \n􀁸 P Wave ‐ Visible before each QRS complex  \n􀁸 P‐R Interval ‐ Normal  \n􀁸 The impulse generating the heart beats are normal, but they are occurring at a faster pace than normal. Seen during exercise  \nSupraventricular Tachycardia (SVT) Abnormal  \nA narrow complex tachycardia or atrial tachycardia which originates in the 'atria' but isnot under direct control from the SA node. SVT can occur in all age groups  \nLooking at the ECG you'll see that:  \n􀁸 Rhythm ‐ Regular  \n􀁸 Rate ‐ 140‐220 beats per minute  \n􀁸 QRS Duration ‐ Usually normal  \n􀁸 P Wave ‐ Often buried in preceding T wave  \n􀁸 P‐R Interval ‐ Depends on site of supraventricular pacemaker  \n􀁸 Impulses stimulating the heart are not being generated by the sinus node, but instead are coming from a collection of tissue around and involving the atrioventricular (AV) node  \n[www.lifesavercpr.net](www.lifesavercpr.net) (209) 499‐2249 [LifeSaverCPR@hotmail.com](LifeSaverCPR@hotmail.com)  \nAtrial Fibrillation  \nMany sites within the atria are generating their own electrical impulses, leading to irregular conduction of impulses to the ventricles that generate the heartbeat. This irregular rhythm can be felt when palpating a pulse  \nLooking at the ECG you'll see that:  \n􀁸 Rhythm ‐ Irregularly irregular  \n􀁸 Rate ‐ usually 100‐160 beats per minute but slower if on medication  \n􀁸 QRS Duration ‐ Usually normal  \n􀁸 P Wave ‐ Not distinguishable as the atria are firing off all over  \n􀁸 P‐R Interval ‐ Not measurable  \n􀁸 The atria fire electrical impulses in an irregular fashion causing irregular heart rhythm  \nAtrial Flutter  \nLooking at the ECG you'll see that:  \n􀁸 Rhythm ‐ Regular  \n􀁸 Rate ‐ Around 110 beats per minute  \n􀁸 QRS Duration ‐ Usually normal  \n􀁸 P Wave ‐ Replaced with multiple F (flutter) waves, usually at a ratio of 2:1 (2F ‐ 1QRS) but sometimes 3:1  \n􀁸 P Wave rate ‐ 300 beats per minute  \n􀁸 P‐R Interval ‐ Not measurable  \n􀁸 As with SVT the abnormal tissue generating the rapid heart rate is also in the atria, however, the atrioventricular node is not involved in this case.  \n[www.lifesavercpr.net](www.lifesavercpr.net) (209) 499‐2249 [LifeSaverCPR@hotmail.com](LifeSaverCPR@hotmail.com)  \n1st Degree AV Block  \n1st Degree AV block is caused by a conduction delay through the AV node but all electrical signals reach the ventricles. This rarely causes any problems by itself and often trained athletes can be seen to have it. The normal P‐R interval is between 0. 12s to 0.","cbCaip85IaFDHMwq","https://ap.wps.com/l/cbCaip85IaFDHMwq","pdf",766738,"English","# ECG Rhythm Study Guide\n## Normal Sinus Rhythm\n## Sinus Bradycardia\n## Sinus Tachycardia\n## Supraventricular Tachycardia (SVT)\n## Atrial Fibrillation\n## Atrial Flutter\n## 1st Degree AV Block\n## 2nd Degree Block (Type 1 - Wenckebach)\n## 2nd Degree Block (Type 2)\n## 3rd Degree Block","[{\"question\":\"What ECG features define a normal sinus rhythm?\",\"answer\":\"The rhythm is regular with a rate between 60–100 bpm, normal QRS duration, visible P wave before each QRS complex, and a normal PR interval.\"},{\"question\":\"How is sinus bradycardia identified on an ECG?\",\"answer\":\"Sinus bradycardia shows a regular rhythm with a rate below 60 bpm, normal QRS duration, P wave visible before each QRS complex, and a normal PR interval.\"},{\"question\":\"What ECG findings suggest atrial fibrillation?\",\"answer\":\"Atrial fibrillation typically shows an irregularly irregular rhythm, a usually 100–160 bpm rate (slower if on medication), normal QRS duration, P waves not distinguishable, and PR interval not measurable.\"}]","ECG Rhythm Study Guide | PDF",1790157469,23]