甘露醇是临床上治疗脑血管疾病的常用药物。此药属于低分子化合物,经静脉滴注进入人体后仅有极少部分会在肝内转化为糖,绝大部分会被肾小球滤过。此药不会被肾小管重吸收,而且可使肾小管处于高渗状态,阻断其对水、电解质的重吸收,从而可起到脱水、利尿的作用。因此,甘露醇具有降低颅内压、清除自由基及改善脑水肿的作用,是临床上治疗颅内 Mannitol is commonly used in the clinical treatment of cerebrovascular disease. This medicine belongs to low molecular compounds, after intravenous drip into the human body only a very small part of the liver will be converted to sugar, the vast majority will be glomerular filtration. This drug will not be reabsorbed by the renal tubules, but also make the tubular hypertonic state, blocking its reabsorption of water, electrolyte, which can play a dehydration, diuretic effect. Therefore, mannitol has the effect of reducing intracranial pressure, scavenging free radicals and improving brain edema, and is a clinical treatment of intracranial