- Sinus bradycardia
- PR – Normal (~200ms)
- QRS – Prolonged (120ms)
- QT – 620ms
- Apparent due to T-U fusion
- ST Depression leads I, II, aVF, V2-6
- ‘Down-up’ T wave
- Significant lead artifact in all precordial leads
- ECG features consistent with hypokalaemia
What happened ?
The patient had a K of 1.4 mmol/L !! They were admitted to critical care for monitoring during replacement.
Hypokalemia ECG’s on the Web
- ECG of the Week – We’ve had some examples of hypokalemia previous check them out here & here.
- Dr Smith’s ECG Blog – multiple great examples of hypokalaemic ECGs here.
- Dr Ken Grauer’s ECG Interpretation – A great walk through of ECG changes in hypokalaemia here.
- Amal Mattu’s ECG Video – ECG findings in severe hypokalaemia here.
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.