Repeat ECG with left-sided precordial electrode placement:

INTERPRETATION:
- Ventricular rate 62 bpm
- Sinus rhythm
- PR interval 132 ms
- Normal QRS axis (18°)
- QRS duration 96 ms
- QTc 444 ms
- Normalised R wave progression and T wave axis throughout the precordial leads
DIAGNOSIS:
- Normal 12-lead electrocardiogram