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Wide-complex tachycardia that didn’t follow the rules

Dr. Smith's ECG Blog

Although the emergency physician (along with an APRN and an RN) had not seen any alterations in the rhythm after adenosine was pushed, a paper recording of the episode was subsequently unearthed. Post-conversion : Back to sinus with classic LBBB pattern The WCT was presumed to be VT, and the patient admitted. A surprise clue!