I'm sorry for the quality of this ECG, it's a copy of a copy which has then been scanned. I've elected to include it on the blog as I think it's a nice ECG example despite the poor quality.
Check out the comments from our original post here.
|Click to enlarge|
- ~84 bpm
- Sinus rhythm
- Complexes #5 & #7 premature complexes (atrial vs junctional)
- Associated pause following
- Right axis deviation
- PR - Normal (160ms)
- QRS - Normal (80-100ms)
- QT - 360ms
- No ST changes
- Lead I & aVL inverted P wave, negative QRS and negative T wave
- Lead aVR and V1 noticeably different morphologies
- Lead V2 obscured by artifact
- Normal R wave progression
- Sinus rhythm with premature complexes
- Lead reversal - RA / LA
- Inverted lead I
- Leads II & III switch places
- Leads aVR & aVL switch places
Whilst you get a similar picture with dextrocardia, the heart rather than the leads being reversed, this should also result in precordial voltage changes as seen in our ECG from 17th Feb 2014.
References / Further Reading
Life in the Fast Lane
- Chan TC, Brady WJ, Harrigan RA, Ornato JP, Rosen P. ECG in Emergency Medicine and Acute Care. Elsevier Mosby 2005.