Which ECG findings are characteristic of calcium channel blocker (CCB) toxicity?

Updated: Jan 04, 2021
  • Author: B Zane Horowitz, MD, FACMT; Chief Editor: Michael A Miller, MD  more...
  • Print

On ECG, toxicity from calcium channel blockers may manifest as any of the following:

  • Bradycardia
  • First-, second-, or third-degree atrioventricular (AV) block
  • Any type of bundle-branch block
  • Nonspecific ST-T wave changes

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!