ECG Case 309 Post category:ECGs Post published:December 27, 2025 Share on Facebook Share on X (Twitter) Share on Pinterest Share on Email Share on Reddit The following ECG is from a 57-year-old male who presented with diarrhea and vomiting. Past medical history of T2DM and hypertension. ECG Case 309 INTERPRETATION AND ANSWER Share on Facebook Share on X (Twitter) Share on Pinterest Share on Email Share on Reddit Read more articles Previous PostECG Case 308 Next PostECG Case 310 You Might Also Like ECG Case 74: AV nodal re-entry tachycardia (AVNRT) April 20, 2022 Know the Differential for ST Segment Elevation: It’s More Than Just ACS October 15, 2021 Anterior-Inferior-Posterior MI September 5, 2021