This post is an answer to the ECG Case 303
- Rate: 48 bpm
- Rhythm: Regular sinus rhythm
- Axis: Normal
- Intervals:
- PR – Prolonged (~210ms)
- QRS – Normal (80-100ms)
- QT – 480ms (QTc Bazette 430 ms)
- Additional:
- Osborne / J waves best seen in leads V5-6
- Baseline artifact
- ? Parkinson’s tremor
- ? Shivering artifact
- Completely inverted lead III
- Negative P, QRS & T
- Likely LA/LL Reversal
- Results in inverted III, switch of I & II and switch of aVL & aVF
- Low voltage ECG with the exception of V6
Interpretation
Changes consistent with hypothermia:
- Bradycardia
- 1st Degree AV block
- J waves
The patient’s core temperature was 31.1 degrees Celsius.
READ MORE: Hypothermia Algorithm
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