张先生，34岁，2年前因胃溃疡行胃大部切除术，近半年来经常头晕、心悸、体力逐渐下降，经医生诊断为“缺铁性贫血”并给予铁剂治疗。请问最早提示该病人铁剂治疗有效的指标是 - 查题网

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张先生，34岁，2年前因胃溃疡行胃大部切除术，近半年来经常头晕、心悸、体力逐渐下降，经医生诊断为“缺铁性贫血”并给予铁剂治疗。请问最早提示该病人铁剂治疗有效的指标是

A、
红细胞
B、
血红蛋白
C、
网织红细胞计数
D、
血细胞比容测定
E、
血沉

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