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Hypokalemia and hyperkalemia

Korean Journal of Pediatrics 2006;49(5):470-474.
Published online May 15, 2006.
Hypokalemia and hyperkalemia
In-Seok Lim
Department of Pediatrics, College of Medicine, Chung Ang University, Seoul, Korea
저칼륨혈증과 고칼륨혈증
임인석
중앙대학교 의과대학 소아과학교실
Correspondence: 
In-Seok Lim, Email: inseok@cau.ac.kr
Abstract
Hypokalemia and hyperkalemia are the most commonly encountered electrolyte abnormalities in hospitalized patients. Because untreated hypokalemia or hyperkalemia is associated with high morbidity and mortality, it is important to recognize and treat them immediately. Hypokalemia and hyperkalemia can result from disruptions in transcellular homeostasis or in the renal regulation of K+ excretion. Although the recognition is simple, appropriate management requires an understanding of normal K+ homeostasis and pathophysiology. In this article, normal K+ homeostasis, pathophysiology, diagnosis and management of hypokalemia and hypokalemia are discussed.
Key Words: Hypokalemia , Hyperkalemia , Potassium


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