Patent ID: 8900172

Claim:
A user interface for a blood treatment apparatus having an extracorporeal blood circuit, comprising: a control device; an input device for inputting one of a calcium dosage, a calcium amount and a calcium concentration, wherein an addition of the one of the calcium dosage, the calcium amount and the calcium concentration is effected by the control device; and a display for displaying a value determined as a lowest permissible value; wherein the blood treatment apparatus includes: a substituate source for providing a substituate solution into the extracorporeal blood circuit; and a dispensing device for dispensing a calcium solution into the extracorporeal blood circuit, wherein the control device is configured to execute a method for controlling the apparatus while adding citrate for anticoagulation, the method comprising: outputting a signal to the dispensing device for altering a setting of the dispensing device, wherein the setting is at least one of corresponding to or effecting an addition of one of the calcium solution, the calcium dosage, the calcium concentration, the calcium amount, or a calcium rate; defining or altering the outputted signal based on one of a calcium content or a calcium concentration of the substituate solution of the substituate source used in extracorporeally treating the blood; automatically determining a range of permissible settings for the calcium introduced or to be introduced into the extracorporeal blood circuit by the dispensing device; determining the value as the lowest permissible value of the setting range, the lowest permissible value being equal to or greater than zero; and allowing the setting of: (i) one of the calcium dosage, the calcium amount or the calcium concentration by a user of the apparatus either only in the range of permissible values of the setting range or not below the value determined as the lowest permissible value, or (ii) one of the calcium dosage, the calcium amount or the calcium concentration automatically to the value determined as the lowest permissible value.