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Hypokalemia magnesium deficiency

One of the more serious complications of magnesium deficiency is cardiac arrhythmias. Premature atrial complexes, atrial tachycardia and fibrillation, ventricular premature complexes, ventricular tachycardia, and ventricular fibrillation may be associated with magnesium deficiency. These effects maybe partly caused by the hypokalemia, renal wasting, and intracellular depletion of potassium caused by hypomagnesemia. [Pg.1910]

Because hypomagnesemia is often associated with a variety of other electrolyte abnormalities such as hypokalemia and hypocalcemia, it is difficult to ascribe specific clinical manifestations solely to magnesium deficiency. Hypocalcemia is one of the most prominent symptoms of hypomagnesemia. Hypocalcemia is usually detected first because it is more commonly measured in clinical practice. The etiology of hypocalcemia is not entirely clear, but it is probably caused by decreased secretion of PTH, low l,25-(OH)2 vitamin D concentrations, and skeletal resistance to PTH. As with hypokalemia, hypocalcemia accompanied by hypomagnesemia is most effectively treated with magnesium administration. [Pg.977]

Patients with a jejunostomy are at risk of hypokalemia as weU, so potassium levels must be monitored closely for supplementation. Other patients at risk for potassium depletion include individuals with long-term sodium depletion, magnesium deficiency, or excessive loss from diarrhea. Metabolic alkalosis, which may occur when a patient becomes dehydrated, accelerates the renal excretion of potassium, as all hydrogen ions are conserved in an attempt to correct the acid-base disorder. As bicarbonate ions are excreted renaUy, potassium is taken with them to maintain osmotic balance. [Pg.2649]

A variety of pathological conditions are associated with low serum magnesium levels in humans. Hypocalcemia and hypokalemia frequently accompany magnesium deficiency in humans [27]. Neuromuscular hyperexcitahility characterized by tetany, convulsions, and muscle tremors, ataxia, and muscle weakness have all been observed in hypomagnesemic patients [79]. Hypomagnesemia in humans has also been associated with various cardiovascular abnormalities, including arrhythmias [80], mitral valve prolapse [81], coronary vasospasm [82], myocardial infarction [83,84], and hypertension [85]. [Pg.459]

Low serum potassium, below 3.4 mEq/L (3.4 mmol/L), may be caused by the use of diuretic medications that result in the excretion of potassium in the urine and by the loss of potassium through diarrhea or excessive sweating. Deficient dietary intake of potassium and magnesium (which causes potassium to move into the cells) could contribute to the development of hypokalemia. [Pg.65]


See other pages where Hypokalemia magnesium deficiency is mentioned: [Pg.452]    [Pg.147]    [Pg.3377]    [Pg.1910]    [Pg.969]    [Pg.125]    [Pg.412]    [Pg.1508]    [Pg.1586]    [Pg.2608]   
See also in sourсe #XX -- [ Pg.254 ]




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