The Daily
ECG
ECG Reference
/
Electrolyte & metabolic
Electrolyte & metabolic
Hyperkalemia
ECG criteria
Peaked T waves, then PR prolongation, QRS widening, sine-wave pattern.
Related: electrolyte & metabolic
Hypokalemia
Flattened T waves, prominent U waves, ST depression, prolonged QT.
Hypocalcemia
Prolonged QT interval mainly via ST lengthening.
Hypercalcemia
Short QT interval, occasional Osborn waves in severe cases.