MASTER ECG/EKG INTERPRETATION: A Systematic Approach for 12 Lead ECG/EKGs | Retired

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Published 2021-07-08
Correction: Obesity causes left axis deviation. Extremely thin individuals can cause extreme right axis deviation! Apologies for that mistake.

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In this lecture, Professor Zach Murphy will be presenting on ECG/EKG INTERPRETATION: A Systematic Approach for 12 Lead ECG/EKGs. After this course, there will not be a 12 lead EKG you can’t read. Please refer to the index if there is specifically an area you would like to get more practice with. During this lecture we will be discussing the basics of EKGs, Rate and Rhythm, ST Elevation and Abnormalities, T Wave and Abnormalities, QRS Complex and Abnormalities, QT Interval and Abnormalities, P Wave / PR Interval and Abnormalities, and finally Cardiac Axis and Abnormalities. We hope you enjoy this lecture and be sure to check out all of our social media pages and ways to support us below!

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● Mancini MC. Heart Anatomy. In: Berger S Heart Anatomy. New York, NY: WebMD.emedicine.medscape.com/article/905502-overview.
● Hill M. Cardiovascular System - Heart Histology. embryology.med.unsw.edu.au/embryology/index.php/Ca…. Rosen IM and Manaker S. Oxygen delivery and consumption. In: Post TW, ed. UpToDate .
● Waltham, MA: UpToDate.www.uptodate.com/contents/oxygen-delivery-and-cons….
● McCorry LK. Physiology of the Autonomic Nervous System. Am J Pharm Educ .2007; 71(4): p.78. doi: 10.5688/aj710478.
● Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice. Elsevier Health Sciences; 2016
● Leslie P. Gartner, James L. Hiatt. Color Textbook of Histology. New York (NY): Grune & Stratton Inc.; 2006
● U. S. National Institutes of Health, National Cancer Institute. NIH SEER Training Modules - Classification & Structure of Blood Vessels. training.seer.cancer.gov/anatomy/cardiovascular/bl….
● Ostenfeld E, Flachskampf FA. Assessment of right ventricular volumes and ejection fraction by echocardiography: from geometric approximations to realistic shapes. Echo research and practic.2015; 2(1): p.R1-R11. doi: 10.1530/ERP-14-0077.
● Maceira AM, Prasad SK, Khan M, Pennell DJ. Reference right ventricular systolic and diastolic function normalized to age, gender and body surface area from steady-state free precession cardiovascular magnetic resonance.. Eur Heart J .2006; 27(23): p.2879-88. doi: 10.1093/eurheartj/ehl336. Klabunde RE.Hemorrhagic Shock. www.cvphysiology.com/Blood%20Pressure/BP031.
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● Kaur P, Basu S, Kaur G, Kaur R. Transfusion protocol in trauma. J Emerg Trauma Shock .2011; 4(1): p.103. doi: 10.4103/0974-2700.76844.
● Campbell RL, Li JTC, Nicklas RA, Sadosty AT. Emergency department diagnosis and treatment of anaphylaxis: a practice parameter. Ann Allergy Asthma Immunol .2014; 113(6): p.599-608. doi: 10.1016/j.anai.2014.10.007
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● Marieb EN, Hoehn K. Anatomy & Physiology. Hoboken, NJ: Pearson; 2020. Boron WF, Boulpaep EL. Medical Physiology.;2017.

Table of Contents:
0:00 Introduction
0:26 The Basics of EKGs
8:32 Rate and Rhythm
18:26 ST Segment and Abnormalities
26:21 T Wave and Abnormalities
31:53 QRS Complex and Abnormalities
43:30 QT Interval and Abnormalities
47:07 P Wave / PR Interval and Abnormalities
52:09 Cardiac Axis and Abnormalities

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All Comments (21)
  • @docjw8914
    I am a physician, and this is perhaps the best EKG lecture I have ever had. Thank you. Medical schools across the country should teach this like you do.
  • @salah2086
    I am a hospitalist and practicing for years. I need you to know that this is the best EKG lecture I have ever heard. I personally learned and refreshed my knowledge. I will recommend it to the IM residents in our program. you are fabulous. can not thank you enough.
  • @levitate2820
    He went over a 1-2 week load of material in less than an hour. And it was still much more informative than what my professors teach. I am pleased that learning is not actually hard, people just overcomplicate it.
  • Beginner Tips: For any beginners learning about ECG/EKG for the first time (and perhaps stumbled on this video first), I found it much easier to watch his EKG Basics video first then watch this video after. It makes a HUGE difference. Hope this helps :)
  • This is incredible. I teach cardiology for a living and I endorse this video. I don't care where you guys find your knowledge as long as you get it from a good source and THIS is a good source!
  • @AmericanFUBAR33
    I practice medicine for 13 years both inpatient and outpatient, this is by far the best EKG lecture I've encountered. You are very gifted Zach, please continue to spread the knowledge. The most beautiful thing about cardiology is that you can directly save someone's life on the spot if you can recognize the problem in the EKG itself.
  • @bochoe2175
    I'm a registered nurse. This is the greatest EKG class I've ever heard of. I got all my questions answered that I've had myself through 45yrs of nursing.
  • @Vak_g
    Being a physician, this was the best EKG lecture I ever had! You are very talented in teaching. Thank you for this fascinating and helpful channel!
  • @lylecurso
    I work as a nurse in ICU, your lectures make me very confident in my practice. I recommend you to my colleagues
  • @benjamin3615
    Yes, thank you! Your work and time on creating these lectures have helped me study so much for paramedic school. Currently in cardiology and my fellow students are coming to me for help in interpreting EKGs and 12 leads.
  • @luciaperez1832
    Please like the video! This took time for them and must be recognized!!
  • @gozdesen7499
    I am an internal medicine specialist and this is the best lecture on EKG i've ever encountered. Thank you.
  • @Sam-ir6xt
    bro I just want to freaking thank you for everything. I am a student now. I swear to god, once I have my degree and am able to work as a nurse I'll donate to you and your team so that these lectures will continue to help tons of students.
  • @lissa2112
    I am an FNP student with a long term oncology background so I knew virtually nothing about EKG interpretation. I watched 2 of your lectures on RKG interpretation and scored 100% on my exam! I love that you ensure a complete understanding of the pathophysiology to think through the assessment and treatment and not relying on memorizing facts. I've learned so much from your lectures and a I am forever grateful!!
  • Hey Zack, 2 days ago i have completed my 1st year and i just wanted to say A HUGE THANK YOU for your amazing videos from anatomy and embriology! You really made me enjoy med school and made my life much easier.
  • I'm a student paramedic and this lecture is one of the biggest factors that has pushed me to consider pursuing cardiology later on in my career. I consistently use it as my primary reference for AE, VH and any interesting abnormalities I find in my 12-leads. I have screenshots as quick references. Thank you, and thank you for all that you do on your channel.
  • Please make a lecture on normal heart sounds and pathological heart sounds auscultation.Your lectures are very helpful sir
  • @rajuwadhwa8262
    As a physician, this was the best EKG lecture I ever had! You are very talented in teaching. Thank you for this fascinating and helpful channel! He went over a 1-2 week load of material in less than an hour. I am pleased that learning is not actually hard, people just overcomplicate it. The diagram is awesome. And obviously your teaching is next level.
  • Every now and then, I like to rewatch this video and revive my entire EKG knowledge, and it works like a charm every single time. It's that good. Best EKG video on the internet and IRL.💙💙💙
  • Once again I can not praise this man enough for his lectures, he has inspired me as I get my paramedic degree and also inticing me with knowledge and making me want to go further in my medical career. Subscribed, brilliant! Enough said.