ECG Interpretation - Understanding the Cardiac Axis

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What is the cardiac axis anyway? I had so much fun making this video. I wanted to do a really simple video to introduce the concept of cardiac axis because we sadly did not get to cover it in my undergraduate syllabus. Since beginning to work on road/on the ward, I have seen this concept come up repeatedly, so I do feel that it is a must know for any aspiring nurse/paramedic.
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I love this! now i can really understand em!

ShahrulKurtAdam
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Interesting. Good on you for having a passion for ECG.
It is very difficult to have a thorough grasp of interpretation.
One controversy you would do well to read up on is the confounders of the isoelectric baseline.
The baseline is generally considered to be the end of the PR segment, just prior to the Q wave formation.

helicart
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Can you explain why the degrees are switched? Why is the -90 degrees at the top and the positive one at the bottom? I am currently learning about ECGs and I stumbled across your video. Thank you in advance.

alexiamountain