Dialysis apparatus including therapy prescription selection

An automated peritoneal dialysis method comprising:

• receiving, in a logic implementer, a patient weight value;
• determining, via the logic implementer, a weight difference between the patient weight value and at least one prior patient weight value;
• when the weight difference is below a threshold, causing, via the logic implementer, a first standard ultrafiltration (“UF”) therapy prescription and a second standard UF therapy prescription to be displayed as possible options for selection, the first standard UF therapy prescription having a longer duration and a lower dextrose concentration and the second standard UF therapy prescription having a shorter duration and a higher dextrose concentration;
• when the weight difference is above the threshold, preventing, via the logic implementer, the second standard UF therapy prescription from being displayed as a possible option for selection;
• receiving, in the logic implementer via a user interface, a selection of the first standard UF therapy prescription or the second standard UF therapy prescription;
• and
• operating, via the logic implementer, at least one pump to perform the selected first standard UF therapy prescription or the second standard UF therapy prescription.