ECG of the Week 4th January 2023

The following is an ECG of a 70 year old man who was in a tachyarrhythmia about an hour ago at a rate of approximately 160bpm, who failed adenosine 6mg and 12mg, and was subsequently administered 10mmol of MgSO4 and 500microg of loading Digoxin and 5mg IV metoprolol. Please describe the patient’s ECG now.