Electrode Detachment

If you see a flatline on the ECG it is more likely to be an electrode falling off (or a faulty wire) than a cardiac arrest – especially if only some leads are affected. If in doubt, check the patient!

See also: Electrode misplacement

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In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Electrode Detachment Serial 12-lead Anterior ST elevation Bradycardia Inferior ST elevation Lateral ST elevation Normal Axis Regular Shark fin ST elevation Widespread ST elevation Left main occlusion Dr Smith's ECG Blog CC BY-NC
Total eclipse of the heart – 41 min later with crushing chest pain, just before arrest

This ECG is from a man in his 50s who presented with chest pain radiating to the left side and back, nausea, diaphoresis and bilateral finger tingling sensation. This was the repeat ECG about 41 min after arrival, with recurrent crushing chest pain, just before he arrested.