Key Learning Points
ECG Waves P, Q, R, S, T
T Waves Page 10
- T waves represent ventricular repolarization(a).
- T waves are normally upright.
- Tall T waves can indicate hyperkalemia
- Negative T waves can indicate a myocardial infarction.
U Wave Page 9
- The U wave is small and follows the T wave(a).
- Because of its low amplitude it is often not seen on a beside ECG monitoring system.
- The significance of the U wave is uncertain, but it may be due to repolarization of the Purkinje system.
