ECG of the Week 26

Here are three easy ECGs for you:

1:

2:

3:

 

I'm sure you all know what these are...

Now think about the features with which you've learned to make this diagnosis: the P-R segment changes and the S-T changes.  These three ECG's feature another "sign" you can use to make the diagnosis of pericarditis:  SPODICK'S SIGN.  This is the down sloping of the T-P segment and it may also extend from one QRS to the next.  I've underlined this feature below: