Methemoglobin is dysfunctional hemoglobin in which the deoxygenated heme moiety has been oxidized from the ferrous (Fe2+) to the ferric (Fe3+) state.
Methemoglobinemia is an undue acc...
Age of onset
New onset of cyanosis in children >6 months of age is unlikely to be due to congenital or enteritis-associated methemoglobinemia.
Source of water
Well water may be contam...
Administer 100% oxygen.
Decontaminate or remove from toxic source of oxidative stress.
Alleviate enteritis with IV fluids or elemental formulas.
Consider consultation with a medical toxicologist.
May require environmental investigation
Canning J, Levine M. Case files of the medical toxicology fellowship at Banner Good Samaritan Medical Center in Phoenix, AZ: methemoglobinemia following dapsone exposure. J Med Toxi...
D74.9 Methemoglobinemia, unspecified
D74.8 Other methemoglobinemias
D74.0 Congenital methemoglobinemia
38959009 Methemoglobinemia (disorder)
Q: Can methemoglobinemia be diagnosed by the color of the blood?
A: The “chocolate brown” blood of methemoglobinemia is most easily noted when compared to “control” blood on a white filter paper ba...
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