Fresenius Medical Care 2008K Operator's Manual page 56

Chapter 2—Daily Preparation for Treatment
Warning! The test of the level detector system must be run as a precaution and aid to
identifying potential failures. Remove the machine from service if it fails this test.
9. Press the 
chamber to an acceptable level.
10. Check blood tubing to ensure that there are no kinks, especially between the blood pump
and the dialyzer.
Warning! Kinked lines can cause hemolysis of the blood.
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.
11. Replace saline bag with a fresh bag if necessary.
Warning! Check the conductivity and approximate pH of the dialysate solution using an
independent device.
12. 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.
13. 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 hemodialysis machine 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.
56
(u
p) key on the Level Detector module to raise the fluid level in the drip
2008K Hemodialysis Machine Operator's Manual Rev P