Tall T Waves
April 24th, 2019
Overview
Look For
- T wave prominence. Note whether the T waves are symmetrical or asymmetrical.
Causes of Tall T Waves
- Hyperkalaemia
- Benign early repolarisation
- Myocardial infarction
Interpretation
- Narrow, symmetrical 'tented' T waves - suggestive of hyperkalaemia
- Tall T waves with concave ST elevation in the precordial leads - suggestive of benign early repolarisation
- Prominent, symmetrical and pointed ('hyperacute') T waves - suggestive of myocardial infarction
Example
- "Tented" T waves associated with mild hyperkalaemia:
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