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Download the article PDF: Clinical Image Challenges November 2025
A 60-year-old female presents to urgent care with palpitations that started abruptly 1 hour prior to arrival. She denies recent illness or cardiac history. An ECG is ordered.
View the ECG and consider what your diagnosis and next steps would be. Resolution of the case is described on the next page.

Case presented by Catherine Reynolds, MD, McGovern Medical School at UTHealth Houston.
60-Year-Old With Palpitations
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