Electrocardiography, Dr. D. Penney

Table 24. HYPERKALEMIA (high plasma K+ level)

  • 4.5 - 5.0 meq/L is the normal plasma K+ conc.

  • P wave is decreased; eventually all nodal and atrial cells are depolarized.

  • T wave is elevated, prolonged; U wave becomes accentuated & fuses with the T wave.

  • At high enough levels contraction ceases; asystole in diastole.



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