摘要

<正>患者男,50岁,因"面色苍白、乏力"入院。患者入院前因反复痔疮出血,出现面色苍白、全身乏力,至我院门诊查血常规:WBC5.09×109/L,RBC2.24×1012/L,Hb71.00g/L,HCT22.50%,PLT290.0×109/L;口服维铁缓释片、叶酸片、甲钴胺片等治疗,患者症状无明显改善。住院后查血常规:WBC7.9×109/L,RBC1.93×1012/L,Hb62.0g/L,HCT18.2%,PLT378.0×109/L。钾5.84mmol/L、磷2.25mmol/L、钙2.34mmol/L、二氧化碳15.7mmol/L、尿素氮34.74mmol/L、肌酐951.1μmo...