Fresenius Medical Care 2008K Operator's Manual page 46

Chapter 2—Daily Preparation for Treatment
Warning! If using a dialyzer that has been stored in a liquid disinfectant such as formaldehyde
or Puristeril 340, test the recirculating saline solution for residual disinfectant according to
established facility protocol or the manufacturer's instructions. Special rinsing techniques
must also be employed to assure the concentration of disinfectant is reduced and maintained at
an appropriate level. These rinsing procedures are the responsibility of the medical director.
The procedure must include a test for residual disinfectant and techniques to avoid rebound of
the disinfectant. Turning the dialysate flow off when using a reused dialyzer may allow the
chemical disinfectant to rebound (increase) to an unacceptable level.
8. Replace saline bag with a fresh bag if necessary.
Warning! Check the conductivity and approximate pH of the dialysate solution using an
independent device.
9. Check for a normal dialysate flow by observing the rise and fall of the external flow indicator
located on the dialyzer supply line. The float should drop four times in about 15 seconds for
a 500-ml/min flow, or four times in 10 seconds for an 800-ml/min flow.
10. Open the shunt door and verify that the machine goes into bypass mode. In bypass mode, an
audible alarm may sound, the bypass light on the control panel should light, and the float in
the flow indicator of the dialyzer supply line should drop and remain at the bottom of the
indicator.
Note: The 2008K can be configured (in Service mode) so that audible alarms occur only when
the optical detector senses blood. If this option is not selected, an audible alarm will sound
when the shunt interlock door is open.
46 2008K Operator's Manual rev. K