Nail Polish Remover Induced Methemoglobinemia: An Uncommon Occurrence

Methemoglobinemia, defined as hemoglobin's impaired oxygen-carrying capacity due to oxidation from the ferrous (Fe2+) state to the ferric (Fe3+) state, has many well-documented etiologies. One example of an uncommon cause of acquired methemoglobinemia is the ingestion of nail polish remover, which can contain methemoglobin generators such as nitroethane, N,N-dimethyl-p-toluidine, and isobutyl nitrite. We present a case of methemoglobinemia in an 81-year-old male following accidental ingestion of isobutyl nitrite-containing nail polish remover, commonly used as a recreational inhalant. Furthermore, we review potentially toxic substances found in commercially available nail products. This case was designed to identify and efficiently treat a rather uncommon cause of methemoglobinemia induced in this case by a common household item, nail polish remover.