Sammanfattning
We present a case report of an 18-year-old male who was referred to the emergency department with evidence of methaemoglobinaemia.
He presented with classic symptoms with peripheral cyanosis and hypoxia. Arterial blood gas showed a methaemoglobin level of 36%. This
was caused by ingestion of alkyl nitrite, a widespread party drug called "poppers". When inhaled it causes euphoria, reduced pain and
relaxation of the anal sphincter, but oral use may induce life-threatening methaemoglobinaemia. The treatment of choice is the antidote
methylene blue. After treatment the patient regained full recovery and was discharged on the following day. We discuss classic symptoms,
diagnosis and treatment of intoxication with methylene blue.