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Methaemoglobinaemia presenting with status epilepticus.
  1. R Malhotra,
  2. G Hughes
  1. Department of Accident and Emergency, Bristol Royal Infirmary, United Kingdom.


    A case is reported of methaemoglobinaemia presenting with recurrent fits in the absence of cyanosis. A low oxygen saturation measured on pulse oximetry that fails to improve with oxygen treatment, the presence of "chocolate brown" blood that does not change on exposure to air, and a high PaO2 arterial blood gas with oxygen therapy should support such a diagnosis. A diagnostic blood methaemoglobin level should be obtained.

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