As a low quality, weak recommendation, it is part of the Scandinavian guidelines for initial management of minimal, mild and moderate head injuries in adults, that patient with a GCS of 14-15 and anticoagulation therapy and a normal CT should be admitted for observation for at least 24 hours. No data are available on the adverse events related to the observational 24-hour admission. The aim was to evaluate the risk of post-CT hemorrhage as well as the risk of complications to an admission (e.g. deleria, thrombosis due to pause of antithrombotic medications.