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镁离子是细胞内含量仅次于钾离子的主要阳离子,是生物体内最重要的元素之一,是多种酶的激活剂。近年来,临床与实验资料表明,镁与心律失常、心力衰竭、肺心病、洋地黄中毒、低血钾等均有密切关系,并日益受到临床重视与应用。一、镁的吸收、分布与排泄正常成人体内镁的含量约在1600～2500mEq之间(平均约为1800mEq)。其中约半数以磷酸镁或碳酸镁的形式积存于骨骼中,其余则存在于各种脏器内。血浆中镁含
Magnesium ion is the main cation whose content in the cell is second only to potassium ion. It is one of the most important elements in the organism and is the activator of many kinds of enzymes. In recent years, clinical and experimental data show that magnesium and arrhythmia, heart failure, pulmonary heart disease, digitalis poisoning, hypokalemia are closely related, and increasingly by clinical attention and application. First, the absorption of magnesium, distribution and excretion Normal adult magnesium content of about 1600 ~ 2500mEq (average about 1800mEq). About half of them in the form of magnesium phosphate or magnesium carbonate in the bones, the rest are present in various organs. Magnesium in plasma