Damn ECG's! Help needed!

G’day all,

I’m a paramedic (ICP/ECP) working in New South Wales in Australia. I was wondering if you could give me a few tips, as I have always struggled with ECG interperatation (I know enough to pass the exams and keep myself out of trouble clinically. I am trying to do some self-education to master this bloody topic, and was wondering if anyone would have any pointers dianosing this 12 lead…

20yof post chest pain, currently asymptomatic. - Don’t worry its not a real patient or an exam, just a workbook question.

30 mins later: