Related Experiment Videos
Chronic methemoglobinemia: improving hemoglobin saturation monitoring during anesthesia
J Sprung1, D L Bourke, C F Mackenzie
1Anesthesiology Service, Baltimore Veterans Affairs Medical Center, MD.
Journal of Clinical Monitoring
|July 1, 1994
Abstract:
Methemoglobin interferes with the accuracy of pulse oximetry data. Methemoglobinemia is caused by many factors, both congenital and acquired. However, the increasing usage of dapsone, which converts hemoglobin to methemoglobin, is increasing the number of patients with methemoglobinemia. We present the case of a patient with dapsone-induced methemoglobinemia who was successfully treated with methylene blue, which converts methemoglobin back to hemoglobin.