J wave can be thought of as a fish hook. The EKG guy has a nice little video on BER for anyone who wants to learn more, where he mentions its presence in V4.
If you want to drive home the difference between a J-point and a J-wave, it is important not to call the J-pint a J-wave in the first few examples. Otherwise, it's a very helpful video
Awesome! Could you apply the same principles to proximal lad occlusion vs pericarditis, in other words is the an s or j wave also present in v2+3 in pericarditis as a point to differentiate those two entities?
