Assertion: systemic hyperkalemia | /r/HasProperty | k+
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Source sentences:
text: It is not uncommon for systemic hyperkalemia to cause the P wave to disappear and the QRS to widen at serum [K+] between 7 and 8 mmol/L, that is, below the threshold at which hyperkalemia causes CV slowing in animal models.
text: In contrast, systemic hyperkalemia ([K+] o >5.5 mmol/L) enhances repolarization reserve by increasing K+ channel conductance, shortening APD, and inducing postrepolarization refractoriness, manifested electrocardiographically by peaked T waves.