text: 【实验室检查】1.血象由于Hb合成下降而呈小细胞低色素性贫血，外周血片可见红细胞大小不等，中央浅染区扩大，出现异形、靶形、碎片红细胞和有核红细胞、点彩红细胞、嗜多染性红细胞、豪-周小体等，网织红细胞正常或增多，通常≤10%。
entities.entity: 血象
entities.label: pro
entities.entity: Hb
entities.label: bod
entities.entity: 小细胞低色素性贫血
entities.label: dis
entities.entity: 红细胞大小不等
entities.label: sym
entities.entity: 中央浅染区扩大
entities.label: sym
entities.entity: 异形、靶形、碎片红细胞
entities.label: bod
entities.entity: 红细胞
entities.label: bod
entities.entity: 点彩红细胞
entities.label: bod
entities.entity: 嗜多染性红细胞
entities.label: bod
entities.entity: 豪-周小体
entities.label: bod
entities.entity: 网织红细胞
entities.label: bod