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The material covers the historical development of the 12-lead ECG and introduces core concepts including waves, intervals, segments, complexes, and the J point. It also defines a practical sequence for interpretation starting with rate (box methods and strip method) and continuing with rhythm assessment.",{"@graph":69,"@context":114},[70,84,105],{"@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/ecgs-step-by-step-a-clinical-review/446028/",{"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/ecgs-step-by-step-a-clinical-review/446028.png","ImageObject",300,407,{"name":92,"@type":93},"Cart","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108],{"name":109,"@type":110,"acceptedAnswer":111},"How does the guide recommend calculating ECG rate?","Question",{"text":112,"@type":113},"It describes two small-box and large-box methods (0.04s and 0.2s) and also a strip method based on multiplying R waves by 6.","Answer","https://schema.org",{"og:url":83,"og:type":116,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":118,"canonical":83},"index,follow",{"doc_id":120,"site_id":62},446028,1791361650,{"code":4,"msg":5,"data":123},{"doc_id":120,"user_id":124,"nickname":92,"user_avatar":125,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":126,"file_id":127,"file_url":128,"file_type":129,"file_size":130,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":131,"language":132,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":133,"faqs":134,"seo_title":135,"seo_description":67,"update_tm":136,"read_time":137,"preview_page_count":4},18829141979164,"https://eur-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","ECG’s Step by Step  \nA Clinical Review  \nby  \nDrProff Patrick  \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)   \nECG Interpretation Guide   \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)   \nHistory of the 12 Lead   \n• Einthoven built first clinical EKG in 1983 and coined the term as well asthe convention “PQRST” deflections; earning him a Nobel Prize in 1924.  \n• In 1934, Dr. Frank N. Wilson of the University of Michigan developed the concept of the ‘central terminal’ blazing the way for the precordial leads“V1-6” as adopted by the AHA in 1938.  \n• In 1942, Dr. Goldberger, using Wilson's central terminal, constructed unipolar leads with the central (zero) terminal and connected to additional positive unipolar leads on each of the left and right arms and the left leg resulting in AVR, AVL and AVF.  \n• In 1954, the AHA recommended for standardization of 12-lead electrocardiogram  \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)   \nLearning Objectives   \n• Following this ECG review, students should be able to:  \n• Do the things  \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)   \nElectro-Kardio-Gram   \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)  \nKey Terms  \n• Wave: A positive or negative deflection from baseline that indicates a specific electrical event. The waves on an ECG include the P wave, Q wave, R wave, S wave, T wave and U wave.  \n• Interval: The time between two specific ECG events. The intervals commonly measured on an ECG include the PR interval, QRS interval (also called QRS duration), QT interval and RR interval.  \n• Segment: The length between two specific points on an ECG that are be at the baseline amplitude (not negative or positive) . The segments include the PR segment, ST segment and TP segment.  \nsupposed toon an ECG  \n• Complex: The combination of multiple waves grouped together. The only main complex on an ECG is the QRS complex.  \n• Point: There is only one point on an ECG termed the J point, which is where the QRS complex ends and the ST segment begins.Call  \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)   \nWhere the leads go   \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)  \nStep By Step Approach   \n• Develop a uniformed approach to reading every EKG so that you are not distracted by findings or bias!  \n• Helpful ECG Pocket review guide by Dr. Akshay Deshpande  \n• Rate, Rhythm, Axis, Intervals, Ps and Qs, ST/Ts and Summery  \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)   \nStep 1: Rate  \n• 2 Methods centered around principles of small boxes are 0.04s and large boxes are 0.2s  \n• Rate by Boxes  \n• 300, 150, 100, 75, 60, 50, 43…  \n• Strip Method  \n• R waves x 6  \nECG [Interpretation](Interpretation Youtube.com/c/DoctorProfessorPatrick)[ Youtube.com/c/DoctorProfessorPatrick](Interpretation Youtube.com/c/DoctorProfessorPatrick)   \nStep 2: Rhythm   \n• Is there a single, regular P before every Q wave?  \n• Sinus Rhythm  \n• Varying P waves?  \n• WAP or MAT  \n• No P waves  \n• Buried* A fib, junctional or ventricular origins  \nECG [Interpretation](Interpretation Youtube.com","cbCaigJew97p2KOY","https://ap.wps.com/l/cbCaigJew97p2KOY","pdf",33884050,74,"English","# History of the 12 Lead\n# Learning Objectives\n# Electro-Kardio-Gram\n## Key Terms\n## Where the leads go\n# Step By Step Approach\n## Step 1: Rate\n## Step 2: Rhythm","[{\"question\":\"How does the guide recommend calculating ECG rate?\",\"answer\":\"It describes two small-box and large-box methods (0.04s and 0.2s) and also a strip method based on multiplying R waves by 6.\"}]","ECG’s Step by Step - A Clinical Review | PDF",1790713701,186]