ECG of the Week - 20th January 2014

Two ECG's this week from a 76yr old patient who presented complaining of palpitations and dysponea.
Past medical history of paroxysmal atrial fibrillation and chronic smoking related lung disease.
Medications include warfarin, calcium channel blocker, and other non-cardiac related medications.
The first ECG below was performed when the patient arrived, the second ECG was performed not long after but prior to treatment being instigated.

ECG 1
The patient's initial ECG on arrival in the Emergency Department
(Click to enlarge) 

ECG 2
Second ECG prior to treatment initiation
(Click to enlarge)

VAQ Corner

A 76yr old presents to your Emergency Department complaining of palpitations and dysponea. Past medical history of paroxysmal atrial fibrillation and COPD.
Medications include warfarin, calcium channel blocker, and other non-cardiac related medications.
Vital signs: BP 115/64 RR 22 Sats 92% RA Temp 36
Two ECG's are performed 10 minutes apart prior to any treatment.

a) Describe & interpret the patients two ECGs (100%)