ECG changes in electrolyte imbalance 

ECG changes in electrolyte imbalance
Normal ECG
P wave -activation of the atria.
QRS complex -activation of the ventricles
T wave - repolarization of the ventricles.
HYPOKALEMIA
ST depression
Shallow, flat, or inverted T wave
Prominent U wave
HYPERKALEMIA
Flat P waves
Prolonged PR interval
Widened QRS complexes
Tall peaked T waves
HYPOCALCEMIA
Prolonged ST segment
Prolonged QT interval
HYPERCALCEMIA
Shortened ST segment
Widened T wave
HYPOMAGNESEMIA
Depressed ST segment
Tall T waves
HYPERMAGNESEMIA
Prolonged PR interval
Widened QRS complexes
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