Clinical manifestations-hyperkalemia

• Weakness, nausea, paresthesias, palpitations; Renal: ↓ NH4+ secretion → acidosis

• ECG:

  • ST depression,
  • peaked T waves,
  • ↓ QT,
  • ↑ PR interval,
  • ↑ QRS width,
  • loss of P wave,
  • sine wave pattern,
  • PEA/VF (ECG: low sens.,
  • cardiac arrest can be first manifestation!)