Which is an indication for a 12-lead EKG after cardioversion?

• A. Post cardio-version of unstable patients (including post arrest) when possible
• B. Non-cardiac chest pain
• C. Dehydration
• D. Allergic reaction

Answer: (A)

After cardioversion, especially in unstable patients or after cardiac arrest, a 12-lead ECG is essential to quickly assess the heart’s electrical status and guide urgent management. It confirms whether a return to a safe rhythm has occurred and, just as importantly, screens for ongoing ischemia or an infarct, recurrent arrhythmias, or other electrical disturbances that need immediate attention. This helps determine next steps, such as further stabilization, additional antiarrhythmic therapy, or interventions for ischemia if present. Other scenarios like non-cardiac chest pain or dehydration or an allergic reaction don’t specifically require this immediate post-cardioversion ECG in the same targeted way, though ECGs may be used in broader evaluations as appropriate.