Symptomatic Methemoglobinemia at Low Levels in a Patient With Obstructive Sleep Apnea
Previously reported cases of hypoxemia secondary to methemoglobinemia usually had measured methemoglobin percentages of around 20% or greater. We report an unusual case of methemoglobinemia secondary to dapsone use in a 66-year-old man with obstructive sleep apnea who presented with dyspnea and hypoxia with a methemoglobin percentage of less than 10%.
Authors
- Don Mathew (ORCID: https://orcid.org/0000-0002-3376-9751)
- Rachel E. Powell
Institutions
- University of Pittsburgh (US)
- University of Pittsburgh Medical Center (US)
Publication Details
- Journal
- Annals of Internal Medicine Clinical Cases
- Published
- 2026-04-01
- DOI
- https://doi.org/10.7326/aimcc.2025.1176
- Primary Topic
- Methemoglobinemia and Tumor Lysis Syndrome
- Type
- article
- Field-Weighted Citation Impact
- 0.00