正铁血红蛋白血症或变性血色蛋白血症(Methemoglobinemia) 是指因血液中异常地出现过多不能带氧的正铁血红蛋白，导致身体出现缺氧变蓝症状。若血液含正铁血蛋白份量超过一成半, 便会出现病征。又称为蓝婴病。
高铁血红蛋白血症 methemoglobinemia ; methoglobini
遗传性高铁血红蛋白症 Hereditary methemoglobinemia
其他高铁血红蛋白血症 Other methaemoglobinaemias ; Other methemoglobinemias
先天性高铁血红蛋白血症 Congenital methemoglobinemia
未特指的高铁血红蛋白血症 Methemoglobinemia, unspecified
在NF 3暴露停止后，高铁血红蛋白转化回血红素。高铁血红蛋白症会在几个小时后自动消失，而溶血性贫血需要几个星期才能解除。
At the cessation of NF3exposure, methemoglobin reverts back to hemoglobin. While methemoglobinemia clears spontaneously over several hours, hemolytic anemia may take several weeks to resolve.
环境中的硝酸盐暴露与婴儿高铁血红蛋白血症及食管癌的病因关联已为人们熟悉。
It is well known that the nitrate and nitrite from environment is causally related to infant methemoglobinemia and esophageal cancer.
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