T wave

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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

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