Normal ST segment

A normal ST segment is usually isoelectric (flat), but in some healthy individuals it can be normal to have some degree of ST elevation, especially in anterior leads.

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Dr Smith's ECG Blog

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ECG Library (7)

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In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Standard Calibration Inverted T waves Narrow QRS Normal Axis Normal P waves Normal rate Normal ST segment Regular Acute Posterior MI Dr Smith's ECG Blog CC BY-NC
Chest pain and a non-diagnostic ECG. No worries, right? 17867

This ECG is from a middle aged man presented with chest pain. This is the first prehospital ECG that was recorded.

Chest pain 12-Lead Standard Calibration Inverted T waves Narrow QRS Normal Axis Normal P waves Normal rate Normal ST segment Regular Acute Posterior MI Dr Smith's ECG Blog CC BY-NC
In the ECGquest archives, this ECG has been tagged with: - 12-Lead Serial 12-lead Standard Calibration Narrow QRS Normal Axis Normal P waves Normal PR Normal rate Normal ST segment Normal T waves Normal Dr Smith's ECG Blog CC BY-NC
Is this ECG diagnostic of coronary occlusion? Also: Inferior de Winter’s T-waves on prehospital ECG?? Baseline ECG 17701

This ECG is from a man in his 50s presented with 1 hour of post exertional chest pressure associated with diaphoresis and nausea. He had a history of coronary artery disease, diabetes, and dyslipidemia.

12-Lead Serial 12-lead Standard Calibration Narrow QRS Normal Axis Normal P waves Normal PR Normal rate Normal ST segment Normal T waves Normal Dr Smith's ECG Blog CC BY-NC
In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Serial 12-lead Normal ST segment Normal T waves Dr Smith's ECG Blog CC BY-NC
A 54 yo male with sudden chest pain. Computer says normal. Paramedic disagrees. – repeat ECG after stenting 16458
Chest pain 12-Lead Serial 12-lead Normal ST segment Normal T waves Dr Smith's ECG Blog CC BY-NC
In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Serial 12-lead Inverted T waves Normal ST segment Acute Anterior MI Dr Smith's ECG Blog CC BY-NC
What is lurking underneath this new right bundle branch block? – next morning 16463
Chest pain 12-Lead Serial 12-lead Inverted T waves Normal ST segment Acute Anterior MI Dr Smith's ECG Blog CC BY-NC
In the ECGquest archives, this ECG has been tagged with: - 12-Lead Serial 12-lead Normal ST segment Acute Anterior MI Mid-anterior MI Dr Smith's ECG Blog CC BY-NC
Is this acute coronary occlusion? Simple ACS? Where is the culprit lesion? – post cath ECG 16553
12-Lead Serial 12-lead Normal ST segment Acute Anterior MI Mid-anterior MI Dr Smith's ECG Blog CC BY-NC
In the ECGquest archives, this ECG has been tagged with: - 12-Lead Normal ST segment Dr Smith's ECG Blog CC BY-NC
A 50-Something w Chest Pain, Anterior STE, and no Evolution on 3 Serial ECGs over 30 minutes, (-) POCUS. Baseline ECG 17273
12-Lead Normal ST segment Dr Smith's ECG Blog CC BY-NC
In the ECGquest archives, this ECG has been tagged with: - 12-Lead Serial 12-lead Normal ST segment Normal T waves Dr Smith's ECG Blog CC BY-NC
Echocardiography, even (or especially) with Speckle Tracking, can get you in trouble. Repeat 4 hours 17610
12-Lead Serial 12-lead Normal ST segment Normal T waves Dr Smith's ECG Blog CC BY-NC
This is a library of 2408 free, open access, re-usable ECGs from across the web.

Where did they come from?

These ECGs were collected from Free Open Access Medical Education (#FOAMed) blogs, with the permission of their authors. You can find out more about each ECG's source by clicking on it.

Why are they here?

This is an experiment in digital curation. The idea is to collect resources to increase awareness and accessibility. Over time, more ECGs in the collection will be tagged to make it easier to find them and reused in new interactive quizzes.

How can I use these ECGs?

You can use these ECGs for your own learning, teaching or research - as long as you abide by the terms of each ECG's copyright licence as stipulated by the original author.

Comments & Feedback
This ECG Archive is an academic, non-commercial #FOAMed project aiming to crowdsource a free open access database of ECGs and signs. If you include your personal details such as your name in your feedback you will be attributed for your contribution, unless you tell us that you don't want this to happen. Personal contact details such as email addresses will not be published but may be used to email you in reply. Full project details and participant information available here.