17 May 2026
: Case report 
Severe Methemoglobinemia Due to Accidental Ingestion of Nitrite-Containing Nail Polish Remover: A Case Report
Challenging differential diagnosis, Management of emergency care, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Lauren A. Gould
AEF 1*, Matthew Carman EF 1, Mary Branan Zahn EF 1, John Amatea EF 1
DOI: 10.12659/AJCR.952382
Am J Case Rep 2026; 27:e952382
Figure 3 Arterial blood gas and telemetryArterial blood gas with co-oximetry results are shown on the left, with an initial partial pressure of oxygen (PaO2) of 394 mmHg and an arterial oxygen saturation (SaO2) of 44.8%, demonstrating a pronounced PaO2-saturation gap suggestive of hemoglobinopathy. The monitor on the right shows a pulse oximetry oxygen saturation (SpO2) of 85%, consistent with refractory hypoxemia while the patient was receiving supplemental oxygen through a nonrebreather mask at 15 L/min.