Ultrafiltration; Setting A Uf Profile; The Uf Profile Subscreen Buttons - Fresenius Medical Care 2008T Operator's Manual

Chapter 3—Setting Treatment Parameters

Ultrafiltration

Use the UF Goal and UF Time buttons to determine the necessary UF rate for the treatment.
The maximum UF rate (set in Service Mode) is limited to between 1000 ml/hr or 4000 ml/hr
(at 1000 ml/hr intervals), depending on the option selected. The UF Goal is limited to 9990
ml. Reset the UF removed to zero after setting the UF time. The ultrafiltration will be at a
steady rate throughout the treatment. When the UF on/off key is turned off, no ultrafiltration
is occurring. When the Tx Clock button is turned on, the UF pump (as well as a number of
other functions) is automatically started. When the UF goal has been achieved, the UF time
is set to 0:00, and the UF rate goes to 70 ml/hr (conventional dialyzers) or 300 ml/hr (high
flux dialyzers). If a profile (variation during treatment) is desired for the UF rate, use the UF
Profile button.
Warning! When using high-flux dialyzers with low UF rates there is a possibility of back-
filtration. Back filtration depends on: type of high-flux dialyzer, flow resistance on dialysate
and blood sides, and blood viscosity.
Note: Weigh the dialysis patient before and after treatment to check against fluid removal
discrepancies.

Setting a UF Profile

The different UF Profiles available are used to improve patient comfort during dialysis by
providing alternating patterns of high and low rates of ultrafiltration. This also allows the
fluid in the patient to equilibrate more completely between the intracellular and extracellular
compartments. A UF profile divides the UF Time into twelve equal segments of differing UF
rates, based on the profile, in order to reach the prescribed UF Goal.
To view the available profiles, select the UF Profile button on the "Home" screen. The "UF
Profile" subscreen will open displaying up to eight possible profiles and a selection for
"None." The first four profiles are standard profiles. The fifth through eighth profiles are
programmable to meet the needs of the clinic.
Table 17 – The UF Profile Subscreen Buttons
Button
78
Function
Profile 1 – Increases the UF rate for approximately the first 40% of
the treatment then gradually decreases
2008T Machine Operator's Manual P/N 490122 Rev N