EKG hipokalemia dan hiperkalemia

EKG hipokalemia dan hiperkalemia


The earliest ECG abnormality seen in hyperkalemia is tall, peaked, symmetrical T waves with a narrow base—the so-called tented T wave. In hyperkalemia, sinoatrial block, second-degree AV block (either Mobitz I or II), and passive or accelerated junctional or ventricular escape rhythm may occur. Severe hyperkalemia may result in either ventricular fibrillation or arrest. The following ECG sequence is associated with a progressive increase in the serum potassium level :

1.     Tall, tented T waves

2.     Prolongation of the QRS duration (intraventricular block)

3.     Prolongation of the PR interval (first-degree AV block)

4.     Disappearance of the P wave

5.     Wide, bizarre diphasic QRS complex (“sine wave”)

6.     Eventual asystole.

These ECG changes are usually seen best in leads II and II and the left precordial leads.

hipokalemia ekg

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