• Arch Pediat Adol Med · Aug 1998

    Case Reports

    Pseudomethemoglobinemia: a case report and review of sulfhemoglobinemia.

    • H C Lu, R D Shih, S Marcus, B Ruck, and T Jennis.
    • Department of Emergency Medicine, Morristown Memorial Hospital, NJ 07962-1956, USA.
    • Arch Pediat Adol Med. 1998 Aug 1; 152 (8): 803-5.

    ObjectivesTo see if methemoglobin could potentially be misdiagnosed and the limitation of present cooximeters.PatientA 17-year-old girl who overingested a combination of cimetidine, acetaminophen, ibuprofen, and naproxen in a suicide attempt.MethodUse of pulse co-oximeters to aid in the diagnosis of suspected sulfhemoglobinemia.ResultsDiagnosis of sulfhemoglobinemia achieved with final confirmation made with gas chromatography. Patient steadily improved with supportive care.ConclusionsThere is a potential for the diagnosis of methemoglobin with some of the limitations of present co-oximeters. The laboratory diagnosis of sulfhemoglobinemia can be difficult to make.

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