ECG Case 010

This ECG demonstrates classic features of hypothermia:

• Bradycardia
• Osborn waves (J waves) = notching at the J point seen in V2-6
• Long QT interval (~ 600 ms)
• Shivering artifact

The rhythm is probably sinus bradycardia — mapping out the RR intervals reveals a regular rhythm despite the obliteration of the baseline by the shiver artifact.