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

获得铁粒幼细血的平均红细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.

诊断始于血常规检，低血红蛋白、低平均红细体积（MCV）和低平均红细血红蛋白（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.

在先天铁粒幼细血的全血细计数中，反映红细大小的平均红细体积，通常是正常降低的。