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      Physiology of magnesium metabolism and the important role of magnesium in potassium deficiency.

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      The American journal of cardiology

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          Abstract

          Magnesium, the second most abundant intracellular cation, has several critically important roles in the body. In addition to energy production and maintaining electrolyte balance, magnesium is essential for normal neuromuscular function as well as calcium and potassium transport. Evidence suggests that a deficit of magnesium is closely interrelated to potassium deficiency and refractory potassium repletion. Although the consequences of hypokalemia are widely documented and recognized, it is only recently that the importance of magnesium deficiency as a cause of potassium depletion has gained clinical attention. Because of the association between hypokalemia and ventricular ectopy/sudden death, familiarity with the causes of magnesium loss, as well as enhanced identification and treatment, appear to be important.

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          Author and article information

          Journal
          Am. J. Cardiol.
          The American journal of cardiology
          0002-9149
          0002-9149
          Apr 18 1989
          : 63
          : 14
          Affiliations
          [1 ] University of Southern California School of Medicine, Los Angeles 90033.
          Article
          0002-9149(89)90216-6
          2650512

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