使用XG-Ⅱ型血液循环功能测试仪对221名正常学龄儿童血液动力流变学参数进行检测.表明儿童的总血容量、左心有效泵力、每搏心搏出量、每分心输出量及心搏指数均低于成人组.而总周血管阻力则明显高于成人组.心脏指数略低于成人,但仍在正常范围。全血粘度及微循环半更新时间各年龄组与成人无明显差别。 A total of 221 children with normal school-age were enrolled in this study, using XG-Ⅱ blood circulation function tester to measure the total blood volume, left ventricular effective pump force, stroke volume per stroke, And heart index were lower than those in adult group, while total vascular resistance was significantly higher than that in adult group, while cardiac index was slightly lower than that in adults, but still within the normal range. Whole blood viscosity and microcirculation half update time in each age group and adults no significant difference.