镁是机体维持正常运转必需的矿物质之一,是人体新陈代谢过程中必不可少的元素。正常足月新生儿体内含镁总量为1克左右,其中5%在骨骼中,45%在肌肉和软组织中,5%分布于胃液、血液和脑脊液中。健康婴儿的镁正常值是0.6~1.1毫摩尔/升。婴儿血镁含量虽很少,但对机体作用相当大,它对维护中枢神经系统的结构功能、抑制神经肌肉的兴奋性、保障心肌正常收缩和冠状动脉的弹性、调节酶的活性、保证细胞内钾离子 Magnesium is one of the minerals necessary for the body to maintain normal functioning and is an essential element of the body’s metabolism. Normal term neonates total body magnesium content of about 1 gram, of which 5% in bones, 45% in muscle and soft tissue, 5% distributed in the gastric juice, blood and cerebrospinal fluid. Healthy babies magnesium normal 0.6 ~ 1.1 mmol / l. Infant blood magnesium content is small, but the role of the body is quite large, it is to maintain the structural function of the central nervous system, inhibit the excitability of neuromuscular to protect the normal myocardial contraction and coronary elasticity, regulate enzyme activity, intracellular Potassium ions