On a lighter note — I thought I would share the short poem I just wrote regarding rhythm interpretation. I was inspired by those who negate the use of lead II as "giving no clue".
TITLE: 12 Leads are Better than One (Ken Grauer, MD):
1 lead alone is lacking,
If you only use one you are slacking.
A 12-lead is better than one,
It helps with the answer, while before you had none.
This of course all assumes that your patient is stable,
Because if not — then a shock you must enable.
But using lead II not alone,
Will allow you your rhythm skills to best hone!