PT - JOURNAL ARTICLE AU - Martijn R Brands AU - Jelmer Sytema AU - Marinus van Hulst AU - Arvid WA Kamps TI - Unintentional ingestion of a high dose of acenocoumarol in a young child AID - 10.1136/bcr-2020-240365 DP - 2021 Apr 01 TA - BMJ Case Reports PG - e240365 VI - 14 IP - 4 4099 - http://casereports.bmj.com/content/14/4/e240365.short 4100 - http://casereports.bmj.com/content/14/4/e240365.full SO - BMJ Case Reports2021 Apr 01; 14 AB - Acute intoxication with a vitamin K antagonist may cause serious coagulopathy. We report the accidental ingestion of a high dose of acenocoumarol in a young child. Two intravenous administrations of 5 mg of vitamin K, in combination with fast and repeated administration of activated charcoal and sodium sulfate, were sufficient to prevent coagulopathy and related symptoms, despite a confirmed elevated blood acenocoumarol concentration (260 µg/L).