Methemoglobin (British: methaemoglobin, shortened MetHb) (pronounced "met-hemoglobin") is a hemoglobin in the form of metalloprotein, in which the iron in the heme group is in the Fe 3+ …

Oct 21, 2025 · Acquired methemoglobinemia can be severe or even fatal, depending on the proportion of methemoglobin. This topic discusses the pathogenesis, causes, epidemiology, …

MetHb can be life-threatening, especially for babies born with a severe type of the condition or people who use recreational drugs. Most of the time, healthcare providers treat …

Jul 29, 2025 · Methaemoglobin is an uncommon variant of hemoglobin, the protein in red blood cells that transports oxygen throughout the body. While normal hemoglobin efficiently picks up …

Dec 23, 2014 · Methemoglobinemia occurs when red blood cells (RBCs) contain methemoglobin at levels higher than 1%. Methemoglobin results from the presence of iron in the oxidized ferric …

Dec 19, 2025 · Methemoglobinemia is a rare condition where red blood cells can't carry oxygen well. Symptoms can be mild to severe, and treatments include methylene blue and vitamin C …

Aug 28, 2023 · Methemoglobin forms when hemoglobin is oxidized to contain iron in the ferric [Fe3+] rather than the normal ferrous [Fe2+] state. Any of the four iron species within a …

Jan 24, 2024 · If your body produces too much methemoglobin, it can begin to replace your normal hemoglobin. This can lead to not enough oxygen getting to your cells.

The iron component of the hemoglobin of the red blood cells must be in the reduced (deoxidized) state to bind with oxygen; methemoglobin contains the oxidized form of iron and is useless for …

Nov 7, 2024 · Hemoglobin with iron in the Fe³⁺ state is called “methemoglobin” which is incapable of binding to oxygen and delivering it to the body. Methemoglobin is formed in normal …