8. Ultrafiltration
8.3.10.4 UF Drain Line Connector (Sample Port)
This connector can be open to collect a sample of fluid and
measure the UF rate. Refer to Section 18, Calibration /
Adjustments, and Section 19, Functional Verification, for more
information.
8.4 CONTROL STEPS
1. During Prime, the operator enters the prescribed treatment
time (in hours and minutes) in the PRESCRIBED TIME
window and the desired fluid to be removed (in liters) in
the TARGET UF window.
2. The Instrument automatically calculates the hourly UF rate.
The manual UF rate controls the Instrument in the Prime
Mode. Once the Dialyze Mode is started, the calculated
UF rate is displayed and controls the Instrument.
3. The desired volume of fluid is removed from the patient’s
blood.
4. The total volume of fluid removed (in liters) is displayed
continuously in the UF REMOVED window.
The operator may manually override the calculated UF rate by
manually entering the desired UF rate once dialysis has started.
The operator may change the prescribed time and/or target UF in
the Dialyze Mode if desired.
157-1278-915 Rev A 8-17
January 2004
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