For acquired forms, the mean corpuscular volume is normal or high.

获得性细胞性贫的平均细胞体积则是正常升高的。

Diagnosis starts with a routine blood test, that shows low hemoglobin levels, decreased mean corpuscular volume, or MCV; and low mean corpuscular hemoglobin, or MCH.

诊断始于常规检查，出现低白、低平均细胞体积（MCV）和低平均细胞白（MCH）。

On the full blood count, the mean corpuscular volume, which reflects the size of the red blood cell, is usually normal or low, for the congenital causes.

在先天性细胞性贫的全细胞计数中，反映细胞大小的平均细胞体积，通常是正常降低的。