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Electrolyte Disorders

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==Hypercalcemia==
Hypercalcemia results in a faster , high blood calcium, speeds repolarization. Characteristics of hypercalcemia:
*Mild: broad based tall peaking T waves
*Severe: extremely wide QRS, low R wave, disappearance of p waves, tall peaking T waves.
==Hypocalcemia==
ECG-characteristics of hypocalcemia, low blood calcium:
*Narrowing of the QRS complex
*Reduced PR interval
==Hyperkalemia==
ECG characteristics of hyperkalemia, high blood potassium:
*Tall peaked T waves
*Flattening p-waves. In extreme hyperkalemia p-waves may disappear altogether.
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