Fresenius Medical Care 2008K Operator's Manual page 107

After the first OLC test, a line appears in the Kt/V graph that plots both the current and
anticipated effectiveness of the treatment. The solid blue or red line represents the current
amount of delivered therapy (Kt/V) from the beginning of treatment up to the time of the last
test. The gray dotted portion indicates the projected effectiveness of the treatment assuming
the clearance rate remains steady at its present rate. If the effectiveness of the treatment is
projected to reach at least 100% of the minimum Kt/V or 85% (depending on selected Service
Mode option) of the target Kt/V at the end of treatment, the solid portion of the curve will
appear blue.
Using Figure 47 as an example, the graph indicates the following data:

The last test was taken about two hours and 45 minutes after the beginning of a three-
hour treatment.

The target Kt/V is 1.40

The Kt/V at the current time (Delivered Kt/V) is 1.31

The projected Kt/V at the end of the treatment is 1.41

Since the Projected Kt/V of the treatment is 100 percent or greater of the target Kt/V
(1.40) by the end of treatment, the line is blue.
If after an OLC test, the projected effectiveness for the end of the treatment is less than 100
percent of the target Kt/V, the solid portion of the plot appears red and an exclamatory icon is
displayed to the right of the graph (see Figure 49 below).
Figure 49 – Projected Clearance is less than 100 Percent of Target
2008K Hemodialysis Machine Operator's Manual Rev P
Chapter 4—Monitoring the Treatment
107