维持性血液透析患者体内有毒物质潴留,引起活性维生素D(VitD)相对或绝对不足、小肠功能受损、钙吸收减少、肾小球滤过率降低、肾脏排磷明显减少、磷的摄入增高、透析清除有限等原因而普遍存在高磷血症[1]。高磷血症是维持性血液透析患者的常见并发症。控制患者高磷血症,可有效防止肾性骨营养不良 Persistent hemodialysis patients with toxic substance retention, causing relative or absolute lack of active vitamin D (VitD), impaired small bowel function, reduced calcium absorption, decreased glomerular filtration rate, renal phosphorus emissions significantly reduced phosphorus uptake , Dialysis clearance and other reasons and the prevalence of hyperphosphatemia [1]. Hyperphosphatemia is a common complication of maintenance hemodialysis patients. Control of patients with hyperphosphatemia, which can effectively prevent renal osteodystrophy