12 Lead Interpretation Part 1: Introduction to the 12 Lead EKG
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- เผยแพร่เมื่อ 1 ต.ค. 2024
- In this presentation, I briefly discusses the theory of electrode placement and lead monitoring, the Temporal Relationship of the 12-Lead EKG, and acquisition and printing.
**You can find the same videos with some handouts at iTunes U. Go to www.csn.edu/pag... and then click on "Open CSN on iTunes U" and then it will take you to iTunes and you can open the 12-lead shell which has some material. I've been working on getting it up and running, so it's incomplete. But, there is some material up there for people. Enjoy!
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This is seriously amazing! I understand how to read 12 leads, but I always struggle to remember which leads are lateral etc coz I have never fully understood it until now (and I didn't understand how you could tell where the infarct etc was)! Now I get what is meant by posterior/anterior ventricular involvement etc! Thanks so much!
Great video. Good pronunciation, perfect speed of talking and wonderful visual effects. Thank you!!!
23:20 *Instructions Unclear* What do I do after amputating the patients left Arm?
The Last Of One
lol I hope you’re not kidding
5 StarS FOR lecture ....Thanks Sir :)
Thank you!
I am currently taking an EKG class as we speak and for the Precordial Leads we are taught to place them in this order: V1, V2, V4, V3, V5, V6. Does it make a difference on how we are taught? Also, love your videos. I actually learn and understand more from you and your videos than I do from my teacher. I am a visual learner and I need to see it so I can understand it better. Please keep making videos because your videos actually help learners such as myself understand things better. Thank You.
that's the order to help because you will find V3 easier once you locate V4 but you still should place V3 before V4. So you should find V2 and V4 before V3, but you place V3 between V2 and V4.
I like how he takes everything slow
I'm glad I could help. Good luck on your tests!
THANK YOU for throwing terminology in this! Want to talk about a lost art? Vocabulary is so abandoned these days. I love what you're doing.
Paramedic student here, i have spent months trying to develop an intrensic understanding of these leads. Not simply memorizing information.
This video got me there. Thank you so much
i looking for the very clearly explaination like this for the long time.
wow! this video deserves more than 1000 likes! THANK YOU SO VERY MUCH
I was thinking one thing and said another when I was recording this presentation. V1 should be placed on the 4th intercostal space to the right of the sternum. I apologize for the confusion.
This is the greatest presentation I've had on 12 lead ecg. THANK YOU.
I cannot thank you hard enough! you are amazing!
Amazing video, with specific details for everyone's understanding. 5 stars
Wonderful video!!! Loved it! This is the first time it made any sense to me. Your drawing on the graphics truly helped me understand where everything goes. You didn't rush explaining and it's great that you totally broke it down step by step. Thank you so much! Now, I just need to learn how to interpret the strips.
Doctor: "Ok. So let's remove the arm now so we can place the last lead."
Pacient: "But, but..."
Doctor: "No buts, mister X. We know what we are doing. ;)"
WoW.... This is a great video. Its the kind of tutorial i have been looking all these years to build up concepts about ECG. Thanks....
I am an architect....... but I understood the lecture well...... and enjoyed it.....thanks a lot....
Good work! Just one note: when talking about the positions of the lids v1 and v2, the video says v1 is on the left side of the sternum, though it is on the right side.
Did I do that? Oops, good catch.
Wow, you're amazing.. I'm about to take my step 2ck and you just made my hardest subject make absolutely perfect sense. Thank you so much.
This was by far the best 12 - lead EKG explanation I have ever had. Thank you!
I have to agree with the numerous comments below. This was amazing. Going through the lead views step by step with diagrams helped me significantly understand my EKGs. Major Kudos to you. Thanks for taking the time to make these videos.
Finally this makes sense!! Thank you so much!! Gifted teacher!!
"..remove the arm.." =)))
that was quite funny :P
That was by far the best 12 lead ECG presentation ever!!! Thank you so much!! I learned so much and I have been doing this for a few years...fantastic!!!
greetings from Malaysia! you have just made my med sch life easier! thanks a ton!
Very clear and thorough explanation.I will be starting my first day at the Coronary Care Unit in two weeks time and this helped me refresh my knowledge in nursing.Thanks from Staff Nurse in UK!
Lizz Bent You're welcome! Good luck in the CCU
Omg …. I’ve struggled with Ekg understanding and international at the basic level for years and have been so intimidated by it … until I just came across your video today and for the first time in my life … you made me understand it and also made feel like I could do it. Thanks so much for this amazing video 🙏🏽
I am working on putting up videos for each of the different sinus, atrial, junctional, and ventricular rhythms, as well as the heart block and paced rhythms. I have the lessons and presentations, I just need to make videos out of them.
Some machines don’t have the capability to do this due to antiquity or design. Most experts discuss the best lead to continuously monitor a heart rhythm is Lead II, but it does have its drawbacks. I hope this answered your question(s).
Thank you so much! I've read a lot of books, watched tons of vids, and sat in on a few lectures but this was the best training I received. Prior to watching this vid, I couldn't grasp what I was learning and this vid put everything into a clear perspective on ekg.
Thank you!!❤❤❤❤ I searched everywhere to find a good explanation for the ecg
Since I could put a link into a comment, I had to put the iTunes U stuff in the video description. Check the top of the page and you should be able to access it there.
I am not sure, bur isn't the direction of reading is from negative to positive ?
EXACTLY, that has me so confused
This is SUCH a great review. Thank you for not being afraid to go into detail. Very interesting stuff.
I do have printouts available for the vidoes. They are located at iTunes U. If you're interested, I can give you the directions to get there.
Really wonderful teaching skills. A nice way to pass information to nursing and med students
I hope they help everyone as much as they have helped you!
Thanks very much🇹🇿
welldone Sir. Many thanks for this very meticulous lecture. unbeleivebly easy to understand and reproduce.
thanks for taking the time to make this, I'm in paramedic school and you explained this 100 times better than the teacher…go figure :) thanks bud!
What do you need the ground wire for? Can you solve this mystery for me please!
My understanding of the ground lead is that it decreases the amount of interference and "cross-talk" from other electrical sources, e.g. electromagnetic interferende. Since the EKG machine has certain filters in place to look more specifically at the electrocardiographic impulses, outside interference is still a possibility. This is especially necessary in the original 3 leads. I hope this helps. That is such a good question, and I have not looked in the book which has that answer in a long time, so I'm going off of memory.
This makes me want to belt HALLELUJAH out of my window. Why couldn't I find you all cardio block? Where have you been??? T.T
Thank you!
Great presentation! Can't say enough thanks. One of the best in the net. Close to Dr Dale Dubin's book. A small mistake at 26:40 when you are explaining v1 and v2 what they are looking at you have mixed up right and left of the sternum. I want to make sure I am not the one mixed up as I am running very low on confidence:) See if you correct or add text instead of editing audio.
+Ravi Menneni u are right man
Ravi Menneni l
I don't have a problem sharing these, as long as there are no copyright infringements.
WOW! This is one of the better tutorials I have watched. Will use this with my new EMT's and for refreshers etc. Thank you for producing this video!!!!!!!!!!
If you have to remove an arm for a 12 lead, you're probably doing it wrong haha.
You are so dope! Thank you
i found this video very effective..i always had this phobia for ekg's that i never understood..but now, two thumbs up !
I watched dozens of videos looking up EKG, this is the best one I've ever come across! Thanks a ton! :)
This is an amazing video that thoroughly breaks down each lead, which portion of the heart it looks at, and why. One question, though, for the author of this video:
On many "lead summary charts," leads V3 & V4 are considered Lateral leads (as you mentioned) BUT they say that it looks at the Right Coronary Artery! This baffles me! If V3 & V4 are looking at the Left Anterior Ventricle, why wouldn't it be the LEFT ANTERIOR DESCENDING ARTERY?!?
Please break this down for me...are these summary charts wrong? Or is my logic wrong?...and if so, how?
Thank you!
I'm not familiar with looking from the CT out. I've always understood that you are the + electrode looking into the heart towars the CT. I have been it teaching this way for years, and (so far) I haven't had any cardiac specialist (physician or nurse) tell me otherwise. I hope this helps.
Since I could put a link into a comment, I had to put the iTunes U stuff in the video description. Check the top of the page and you should be able to access it there.
Since I could put a link into a comment, I had to put the iTunes U stuff in the video description. Check the top of the page and you should be able to access it there.
@BulkKOP I hope I can answer this in a way which makes sense. With the advancement of computer technology, we now have machines with faster processers and better circuitry which can cycle through the polarity of an electrode from positive (+), to negative (-), to ground (g), back to positive (+), and so on, in milliseconds. This allows monitors to display more than one view (or lead) of the heart in real time as it scrolls across the screen. (continued below)
This is an outstanding lecture. I do not feel completely glazed over as I usually do when trying to learn EKG interpretation and am actually looking forward to watching the rest of the series. Thank you so much!
I'm glad you like it and glad it helps, too.
Wanted to ask which e-mail can I use to contact you? I have some questions that I have been asking myself like: 1. Vivid explanations of PVCs and heart blocks. 2. The difference between a ventricular fibrillation and a PVC? Please anyone with the answers can help me.
If the sum result of the electrical impulse or mean vector is towards the positive ECG pole a positive deflection is recorded. A current flowing towards the negative pole records a negative deflection.
Then I don't understand, why there's only aVR is negative deflection, heart is theoretically negative as you said. But the view from aVL , aVF is also from positive to negative, should they be negative deflection on EKG as well?
Thank you so much! You're a great teacher.
You're really teaching EVERYONE the polar opposite of the truth - leads I, II and III all go from negative TO positive, not the other way around as you have illustrated. This is a BAD mistake and very misleading to new learners,
Has anyone received push back on V1 and V2? I've seen multiple providers at different levels (from paramedics to cardiologists) ask for them to be placed both higher on up (almost to 2nd ICS) and farther apart (so the edge of the electrode touches the sternal border, rather than the middle of electrode). I've been told it's for a cleaner image...but wouldn't that also give a more inaccurate image?
Im lost. Can someone explain why in lead one, if left arm is positive and right arm is negative, the view is from positive to negative? isnt the view always from negative to positive, or right arm to left arm? This is how we learned it in class, and all of these explanations seem to be the opposite. Any help appreciated!
I agree. I'll be looking at other video or opening up a book.
I knew that the direction of lead I is from right arm to the left arm, lead II from right arm to the left foot, and lead III from left arm to left foot.
The way I understood and I'm 90% sure I understood right, the negative pole sends the impulse to the positive pole of the lead just like a ray of light hits the retina of the eye; the positive pole measures the stimulus coming from the negative pole just as the retina picks up the light hitting it. I know this is a 3 yo comment, but better late than never. Hope I cleared things up :)
See the Dr najeeb lectures
@@aminaashrafi8803 it's standard way
Einthoven Dutch doctor completed mbbs in 1886 and after that take interest in recording of heart beating mechanism ...took more than 30 years of his life u can say whole life devoted for only one task ....yes only one task ..discovery of machine that could record electrical activity of heart.....discoveries makes human life better but sadly very few people think of it....let's we think to make human life better..
Unfortunately, I don't follow a specific book. I get my information from an array of paramedic, nursing, and medical textbooks. I take all the information and put it into a video for publication. How nice would it be to have a book that follows this material, eh? Thank you for the feedback!
in the minute 6, you said that the charge will travel from positive to negative for the bipolar leads(leads I-III), but i asked my lecturer,he said that it suppose to be from negative to positive. it will be much appreciated if you can correct them. But anyways, the overall explanation was superb and I learn a lot from your videos.
Great review! Very clear, taking nothing for granted, and wasting no time. *Fist Bump of Destiny*
Any chance we can download your presentation slides somewhere? Great stuff btw
Hello,
I'm an Nurse Practitioner who monitors EKGs during Cardiac Stress tests. your lectures have been extremely helpful to me. I've been trying to print the power point of your lecture to have with me at work but have not been able to. are there any other ways to access them?
Awesome explanation. We have an EKG monitor at home. I’ve been a heart patient since 1966 or so, and have had a zillion EKG’s. But until your explanation here, I never really understood the placement of the leads.
Direction of impulse movement is from negative to positive. Not vice verce versa
Thank you thank you! I'm finally starting to get this!! This is the second time watching the whole series, will probably watch it a third........ gonna master this if it kills me.
I'm glad the vid's are helping. Sorry about the right/left reversal. As long as it doesn't overly confuse everyone.
PEOPLE, the electrical signal from the heart travels toward the + electrode (so from negative to positive).... the "camera" is at the negative electrode, not the positive one. This video needs to be corrected.
Great job. I'm working through the whole playlist. Do you have a consolidated document/flowsheet that walks through the steps of the entire interpretation? A cheat sheet as it where? I've seen other flowcharts but none that use this structure.
I appreciate the compliment. My students have created a type of cheat sheet which gets passed from class to class, but I don't have a copy of it.
How come lead II and lead III switched sides? Initially lead II was on the left side and lead III on the right side until you added the central terminal around the 13 min mark. Thanks! Just trying to learn more
I made 15 different email accounts just to sign in and like this video & subscribe as well... Great explanation mate
So confusing regarding the views. The book has aVL (Between RA and LL) on the right side; aVR on the left side
You can view the posterior wall by taking V4, V5, & V6 wires and moving them to the V7, V8, & V9 positions. Place the first electrode at the posterior axillary line (back part of the armpit) on the same horizontal line you placed V4-V6, & move your V4 wire to that electrode (now, V7). The second electrode goes next to the spine on the same horizontal line (V6 wire becomes V9), and the third electrode goes in the middle of those two (V5 wire becomes V8). Hope this helps!
What are the most accurate placements for leads 1 2 and 3? Should they be closer to the core or farther out on the limbs? Will it make a difference? What about for people with tremors or parkinsons?
I just got lost in the last 30 seconds. Why do we cancel V1 to V3 from the interpretation?
The Einthoven's Triangle waves are equally in both diseased and healthy heart ? To avoid the misconception please .
Just passed my EKG tech exam with a 470 thanks to this vid!!
+olivia4490
I hope 470 was a awesome score, Congratulations on passing your examination!
yes out 500! Thanks again!
Wow... knocked it out of the park!
32Bravo711: Great video series. It is very simple to understand and follow. I had one question though: I was reading a text book on ECG Interpretation (sorry Cant recall the name). The text book mentions that when you select a specific lead for analysis, you are looking from the CT to the lead location. I think your information makes more sense here that you are looking from the +ve to the CT (-ve). Can you please clarify this for me? It would be amazingly helpful
Very good video, thank you very much! I have a very basic question, does the machine automatically switch polarity in the electrode when eg measuring lead I (left arm positive) and then measuring lead III (left arm negative) or how does this happen? When we measure ECG at school we only get one diagram, is that because we only use one lead? What is the "normal" way of measuring ECG (if there is a normal)? Thank you very much for this video, I will watch it several times till I get it all!
Momentary slip of the tongue at 23:49 . The word "right" is repeated twice for the placement of both V1 and V2. At 33:35 in the video timeline, the letters MCL are misrepresented. Lead MCL1 is not an acronym for Modified Chest Lead, but rather it stands for Modified Chest Left. According to the late Dr. Henry J. L. Marriott, who introduced lead MCL1 in 1968, the "L" refers to the Left arm which is where the negative electrode is placed. Otherwise, a very accurate instructional video!
2019 anyone
I might have, I'll have to listen to it. I agree, that is not a medically approved term. :)
Hi great presentation i'm just not sure about the direction of the current between leads, my understanding is that the current moves from negative to positive pole so direction of view would be opposite to what you have described in hexaxial leads.
@32bravo711 Thank you very much for replying!! So it is as I thought it would be! =) Perfect, now I don't have to be confused about this anymore, it hadn't made any sense to me otherwise. Thanks again for both reply and the best video on youtube about EKG ;)
Thank you so much! You managed to explain this better than my lecturer did T.T
Awesome.The first time I really got to understand the 12 leads ecg better. Thank you so much
Already subscribed. This is the great presentation ever. I will share your video with my friends. Even though my english is not very well but I can understand this presentation clearly.
Respect from Thailand.
thank you very much you have to mention about the electrical activity of heart as well
Lol. Remove the arm. 22.22
Great content!!! Thanks for sharing this.
thank you so much. 12 lead was my nightmare but after seeing ur video it became a piece of cake
You sir ARE MY HERO.
Its just clicks with you.
Jeep wave 👋
I cannot access the handouts with the link provided. Do you have another way of getting them?
Tis great Is there any way I can get a print out of the views of the lead on the hear. That you expressed toward the end of your video.
Thank you very much!!
great video thanks - would like to add link to your video as part of a free APP for paramedic revision, would you have any objections? thanks Mark d