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Sulfhemoglobinemia (or sulfhaemoglobinaemia) is a rare condition in which there is excess sulfhemoglobin (SulfHb) in the blood. The pigment is a greenish derivative of hemoglobin which cannot be converted back to normal, functional hemoglobin. It causes cyanosis even at low blood levels. It is a rare blood condition that occurs when a sulfur atom is incorporated into the hemoglobin molecule. When hydrogen sulfide (H2S) (or sulfide ions) and ferric ions combine in the blood, the blood is incapable of carrying oxygen. ==Causes== This can be caused by taking medications that contain sulfonamides under certain conditions (i.e., overdosing of sumatriptan). Sulfhemoglobinemia is usually drug induced. Drugs associated with sulfhemoglobinemia include sulphonamides and sulfasalazine. Another possible cause is occupational exposure to sulfur compounds. It can be caused by phenazopyridine. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Sulfhemoglobinemia」の詳細全文を読む スポンサード リンク
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