case_images: PMC9379961_01
case_images: Shows methemoglobinemia trends over time.
case_images: 10.1177_23247096221117919-fig1.jpg
case_images: PMC9379961_01_10.1177_23247096221117919-fig1.jpg
case_images: fig1-23247096221117919
case_images: Outpatient ABG showed methemoglobinemia level of 5.9% (Figure 1) and the patient was on room air with oxygen saturation of 96%.