Potentially harmful levels of methemoglobin, which can build in patients receiving certain anesthetics, can be detected using a new, non-invasive monitoring technique called pulse CO-oximetry, ...

THE several rare familial disorders constituting the "congenital methemoglobinemias" arise from either of two kinds of inborn errors of metabolism. One kind, accounting for the hemoglobin-M group, ...

A previously healthy 52-year-old Asian woman presented to the emergency department after a syncopal episode. She appeared grey and cyanotic. At 65% fraction of inspired oxygen, pulse oximetry showed ...

Investigation of the electrophoretic characteristics of NADH methemoglobin reductase in five unrelated families with a deficiency of this enzyme showed three different types of enzyme patterns: total ...

The history of the Fugates, a family affected by a strange genetic disorder, has resurfaced online this week, leaving many wondering if blue skin is scientifically possible.The Fugates were a family ...

FDA LOGO BLUE The Agency is urging manufacturers to stop marketing OTC oral drug products containing benzocaine for teething to this patient population. Over-the-counter (OTC) oral products containing ...

A report published in the New England Journal of Medicine describes the case of a 25-year-old woman who developed methemoglobinemia following the use of topical benzocaine. According to clinicians ...

Methemoglobinemia is a congenital or acquired blood disorder caused by an abnormal amount of methemoglobin which is a form of hemoglobin. Hemoglobin is the protein in red blood cells (RBCs) ...