What EKG changes are seen in hyperkalemia

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What EKG changes are seen in patients with hyperkalemia?

• Early, peaked T waves, initially in precordial and then in all leads

• Followed by increased PR interval and QRS complex widening

• This is followed by progressive flattening and then disappearance of P waves.

• Merging of the widened QRS and peaked T waves leads to a sine-wave pattern.

• This may be followed by ventricular fibrillation.

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