Fresenius Medical Care CRIT-LINE III User Manual page 27

Once a PROFILE SCREEN appears, it can be exited at any time by press either
or . Pressing either of these keys will cause the START UP screen to
MENU
SELECT
appear.
Blood parameters are monitored continuously throughout the entire dialysis session.
In the lower portion of the PROFILE screen, there are five information windows that
indicate length of time the patient has been monitored (TIME), the current
instantaneous Hct (HCT), instantaneous estimated HgB (Hemoglobin), percent
change in blood volume (%BV), and the oxygen saturation (SAT). The displayed
HgB value is calculated from the measured Hct. The oxygen saturation (SAT) is
reflective of an arterial saturation if the blood monitored is from a fistula or graft, or
a venous saturation if blood is coming from a central venous line. (See Section 7 for
further information).
NOTE: If any of the four information windows appear in reverse video, this
means that the CLM III is momentarily revalidating data. Previously recorded
values will continue to display until new stable values are measured and the
reverse video clears.
The BV PROFILE screen is the "default" profile screen of CLM III. The main
function of the BV PROFILE screen is to show the continuous percentage change in
a patient's circulating intravascular blood volume over the course of a dialysis
session. Using the hematocrit data, the CLM III calculates and graphically displays
the percent change in blood volume.
Where:
%BV = ((H /H)-1)X100
0
Using the CRIT-LINE III
H =Hct(start)
0
H =Current Hct
3-5
Anytime the
START UP screen
is accessed, the
monitor will again
automatically
revert to the
PROFILE screen in
10 seconds if no
other keypad input
takes place.