Normal T waves

Normal T waves are upright, except for leads aVR and V1. They are less than 5 mm tall in the limb leads, or 15 mm in the chest leads. Normal T waves tend to be more asymmetric (slower going up and faster coming down) than abnormal T waves.

See also: T and U waves

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References

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In the ECGquest archives, this ECG has been tagged with: - Incorrect Machine Interpretation Normal T waves Normal 12-Lead Dr Smith's ECG Blog CC BY-NC
Large T-waves and a Computer Interpretation of ***Acute MI***

This ECG is from a man who presented with a malfunctioning ICD but no chest pain or dyspnoea.

This ECG shows large T waves out of proportion to the QRS but with a very concave upstroke. This was similar to the baseline ECG. There was no acute infarction.

In the ECGquest archives, this ECG has been tagged with: - Seizure Normal T waves Normal 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog CC BY-NC
Two cases texted to me for concern of inferior hyperacute T waves and a flipped T in aVL – do either, neither, or both need emergent reperfusion?

This ECG is from a middle aged man who presented with a seizure after stopping his anti-seizure medications.

This ECG shows tall T waves but not fat enough to be 'hyperacute'. There was no acute coronary syndrome.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Right Axis Deviation Normal T waves 12-Lead Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
A completely healthy 30-something woman with acute chest pain — repeat at 80min

This ECG is from a woman in her 30s who presented with 1 hour of severe right sided chest pain, radiating down her right arm. This was the repeat ECG after aspirin and nitroglycerin.

In the ECGquest archives, this ECG has been tagged with: - Normal Axis Normal T waves Normal Sinus Rhythm 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
A Tale of 2 Occlusions in the Same Patient: one with Expert ECG interpretation, the Other Without – baseline ECG

This ECG is from a man in his 40s who presented with chest discomfort and diaphoresis since waking a few hours earlier, on a background of prior infarction with PCI years ago, active smoking, high cholesterol and hypertension. This was the baseline ECG from 2 years prior.

In the ECGquest archives, this ECG has been tagged with: - High V1/V2 misplacement Normal Axis Normal P waves Normal T waves Normal Sinus Rhythm Normal 12-Lead Serial 12-lead Dr Pendell Meyers Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
A pathognomonic ECG you should recognize instantly. Baseline ECG

This ECG is from a patient of unknown age who presented with generalised weakness and malaise. This was the baseline ECG from a previous presentation.

In the ECGquest archives, this ECG has been tagged with: - Normal Axis Normal rate Standard Calibration Narrow QRS Normal P waves Normal PR Normal ST segment Normal T waves Normal 12-Lead Serial 12-lead 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

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.

In the ECGquest archives, this ECG has been tagged with: - Normal Axis Normal rate Standard Calibration Narrow QRS Normal P waves Normal PR Normal T waves Normal Sinus Rhythm 12-Lead Serial 12-lead 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?? Prehospital ECG 1
In the ECGquest archives, this ECG has been tagged with: - Chest pain Normal ST segment Normal T waves 12-Lead Serial 12-lead 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
In the ECGquest archives, this ECG has been tagged with: - Normal ST segment Normal T waves 12-Lead Serial 12-lead Dr Smith's ECG Blog CC BY-NC
Echocardiography, even (or especially) with Speckle Tracking, can get you in trouble. Repeat 4 hours