The T wave is normally inverted in V1 in infants and small children, except for the first 3 days of life when it may be upright. Inverted T wave in V2 may also be normal.
Tall peaked T waves are seen in:
- Hyperkalaemia
- LVH (volume overload)
- Cerebrovascular accident
Flat T waves are seen in:
- Normal newborns
- Hypothyroidism
- Hypokalaemia
- Digitalis
- Pericarditis
- Myocarditis
- Myocardial ischaemia
- Hyper or hypoglycaemia
