I’m not one for pattern recognition – I try to stick to a systematic review of the rate, intervals, regularity, origin and then work through the leads, where they physically map to, and look for reciprocity..

This image from LITFL is one of my favourite desktop backgrounds (but I digress);

The team at RebelEM put together great posts, and this highlights that just because the ECG you’re reading doesn’t meet ‘the criteria’ for immediate intervention, it won’t evolve into something that does.

http://rebelem.com/five-ecg-patterns-you-must-know