Transfusion is an important question of daily clinical practice. Transfusion is governed by rigorous security rules.

To assess the knowledge of healthcare personnel regarding transfusion.

This descriptive study was carried out by an anonymous survey, with anaesthetist resident, surgery resident, interns, anaesthetist, and nurses. This study was from January 1 to February 29, 2020. It was approved by the local ethics committee.

We included 196 participants. 94.9% knew that red blood cells must be stored in the refrigerator. 58.2% thought that red blood cells should be transfused within 30 minutes of warming, and 31.6% said it should be transfused within 3 hours. We found that 85% knew that fresh frozen plasma should be stored in the freeze, and 59.7% said that the frozen plasma should be thawed within 30 minutes at most and 38.3% thought that the thawing should take at least one hour. Regarding the pretransfusion bedside test, 84.4% knew that it must be done by two personnel one of whom must be a doctor. 40.8% thought that the test consists of mix a drop of patient blood and a drop of bag blood.

Several insufficiencies were found. There is a necessity of launching periodic training courses focusing on the management of blood products and the transfusion procedure.