Il blu che guarisce il blu: un caso di metaemogolbinemia e la sua terapia

Methemoglobinemia should be considered in the differential diagnosis of a cyanotic child, particularly in infants. This condition may be either congenital or acquired and is characterised by an excess of methemoglobin, a haemoglobin fraction incapable of transporting oxygen. First-line therapy consists of methylene blue; however, alternative therapeutic options are also available. The paper reports the case of an 8-month-old infant who developed methemoglobinemia following the ingestion of improperly stored packaged chard.