A method of removing blood from an extracorporeal blood circuit and/or a functional device, each of which is connectable or connected with a blood treatment apparatus for the purpose of a blood treatment of a patient, after concluding a blood treatment session, the method comprising operating a blood pump in a second conveying direction which is opposite to a first conveying direction of the blood pump which is customary during the blood treatment, and an arterial line section of the extracorporeal blood circuit is or will be connected with a venous line section of the extracorporeal blood circuit.
