3 causes of J waves
Hypothermia <32
SAH
Hypercalcaemia
ECG changes for hypoK
Flat T waves
Prominent U waves (U waves occur after T waves)
Digoxin OD ECG changes
ST depression with a sagging ST segment like a moustache
Bifasicular block
RBBB + LAD
Bifascicular block
RBBB + left axis deviation
Trifascicular block
RBBB + left anterior fascicular block + 1st degree heart block