Intradialytic monitoring of blood volume change

A method for monitoring percentage change in blood volume (ΔBV %) during dialysis treatment, comprising:

• obtaining, by a sensor device, hematocrit (Hct)-related measurements based on detecting light which has passed through extracorporeal blood of a patient undergoing the dialysis treatment;
• determining, by one or more controllers, Hct values based on the Hct-related measurements obtained by the sensor device;
• determining, by the one or more controllers, ΔBV % values based on the determined Hct values;
• generating, by the one or more controllers, a graphical user interface (GUI) having a ΔBV % plot based on the determined ΔBV % values;
• and
• displaying, by a display of a display device, the GUI having the ΔBV % plot;
• wherein zone indicators are provided on the display to distinguish between a first zone corresponding to a first ΔBV % profile, a second zone corresponding to a second ΔBV % profile, and a third zone corresponding to a third ΔBV % profile;
• wherein the zone indicators are generated on the display at a predetermined time after the start of the dialysis treatment, and wherein the zone indicators are not provided before the predetermined time.

One or more non-transitory computer-readable mediums having processor-executable instructions stored thereon for monitoring percentage change in blood volume (ΔBV %) during dialysis treatment, wherein the processor-executable instructions, when executed, facilitate:

• obtaining, by a sensor device, hematocrit (Hct)-related measurements based on detecting light which has passed through extracorporeal blood of a patient undergoing the dialysis treatment;
• determining, by one or more controllers, Hct values based on the Hct-related measurements obtained by the sensor device;
• determining, by the one or more controllers, ΔBV % values based on the determined Hct values;
• generating, by the one or more controllers, a graphical user interface (GUI) having a ΔBV % plot based on the determined ΔBV % values, wherein the GUI further includes zone indicators to distinguish between a first zone corresponding to a first ΔBV % profile, a second zone corresponding to a second ΔBV % profile, and a third zone corresponding to a third ΔBV % profile;
• and
• displaying, by a display of a display device, the GUI having the ΔBV % plot;
• wherein generating the GUI comprises generating the zone indicators at a predetermined time after the start of the dialysis treatment.