Solution to ECG #18

1st ECG – ? electrode misplacement

ECG #1

2nd ECG (below) is from the same patient repeated 30 minutes later with correct electrode placement. This confirmed left upper and lower limb electrode reversal:

ECG #2

  • Lead III becomes inverted
  • Leads I and II switch places
  • Leads aVL and aVF switch places
  • Lead aVR remains unchanged

 

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