What is the role of an ECG in the workup of delirium, dementia, and amnesia?

Updated: Sep 19, 2018
  • Author: Richard D Shin, MD; Chief Editor: Gil Z Shlamovitz, MD, FACEP  more...
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An ECG may be performed to search for myocardial infarction or atrial fibrillation with rapid ventricular response. Low voltages, as seen in hypothyroidism and pericardial effusion, may give a clue to the etiology. Look for tachycardia, widened QRS, or prolonged QT interval, which suggest tricyclic overdose.

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