Blood transfusion is the process of delivering blood or blood-based products from one person to another's circulatory system. Blood transfusion is associated with medical conditions such as blood loss in large numbers due to trauma, surgery, shock and malfunction of the cell-forming organs
In Indonesia, blood transfusion activities are managed by the Indonesian Red Cross (PMI). This organization collects blood bags from donors, then distributes them to hospitals or locations that require blood supply