Pseudomethemoglobinemia: A case report and review of sulfhemoglobinemia

Howard C. Lu, Richard D. Shih, Steven Marcus, Bruce Ruck, Thelma Jennis

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Objectives: To see if methemoglobin could potentially be misdiagnosed and the limitation of present co-oximeters. Patient: A 17-year-old girl who overingested a combination of cimetidine, acetaminophen, ibuprofen, and naproxen in a suicide attempt. Method: Use of pulse co-oximeters to aid in the diagnosis of suspected sulfhemoglobinemia. Results: Diagnosis of sulfhemoglobinemia achieved with final confirmation made with gas chromatography. Patient steadily improved with supportive care. Conclusions: There 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.

Original languageEnglish (US)
Pages (from-to)803-805
Number of pages3
JournalArchives of Pediatrics and Adolescent Medicine
Issue number8
StatePublished - Aug 1998
Externally publishedYes

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health


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