Electrocardiographic manifestations: Electrolyte abnormalities

Deborah B. Diercks, George M. Shumaik, Richard A. Harrigan, William J. Brady, Theodore C. Chan

Research output: Contribution to journalArticle

110 Citations (Scopus)

Abstract

Because myocyte depolarization and repolarization depend on intra- and extracellular shifts in ion gradients, abnormal serum electrolyte levels can have profound effects on cardiac conduction and the electrocardiogram (EKG). Changes in extracellular potassium, calcium, and magnesium levels can change myocyte membrane potential gradients and alter the cardiac action potential. These changes can result in incidental findings on the 12-lead EKG or precipitate potentially life-threatening dysrhythmias. We will review the major electrocardiographic findings associated with abnormalities of the major cationic contributors to cardiac conduction - potassium, calcium and magnesium.

Original languageEnglish (US)
Pages (from-to)153-160
Number of pages8
JournalJournal of Emergency Medicine
Volume27
Issue number2
DOIs
StatePublished - Aug 2004

Fingerprint

Electrolytes
Electrocardiography
Muscle Cells
Magnesium
Potassium
Calcium
Incidental Findings
Membrane Potentials
Action Potentials
Ions
Serum
Lead

Keywords

  • calcium
  • cardiac conduction
  • cations
  • dysrhythmias
  • EKG
  • electrocardiogram
  • electrolyte abnormality
  • magnesium
  • potassium

ASJC Scopus subject areas

  • Emergency Medicine

Cite this

Diercks, D. B., Shumaik, G. M., Harrigan, R. A., Brady, W. J., & Chan, T. C. (2004). Electrocardiographic manifestations: Electrolyte abnormalities. Journal of Emergency Medicine, 27(2), 153-160. https://doi.org/10.1016/j.jemermed.2004.04.006

Electrocardiographic manifestations : Electrolyte abnormalities. / Diercks, Deborah B.; Shumaik, George M.; Harrigan, Richard A.; Brady, William J.; Chan, Theodore C.

In: Journal of Emergency Medicine, Vol. 27, No. 2, 08.2004, p. 153-160.

Research output: Contribution to journalArticle

Diercks, DB, Shumaik, GM, Harrigan, RA, Brady, WJ & Chan, TC 2004, 'Electrocardiographic manifestations: Electrolyte abnormalities', Journal of Emergency Medicine, vol. 27, no. 2, pp. 153-160. https://doi.org/10.1016/j.jemermed.2004.04.006
Diercks, Deborah B. ; Shumaik, George M. ; Harrigan, Richard A. ; Brady, William J. ; Chan, Theodore C. / Electrocardiographic manifestations : Electrolyte abnormalities. In: Journal of Emergency Medicine. 2004 ; Vol. 27, No. 2. pp. 153-160.
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