Set Up Procedures
2-2
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2.2 Post-priming Attachment of the Blood Chamber
If the tubing set is already primed, a disposable CRIT-LINE Blood Chamber can be
installed by following the same basic instruction found in Section 2.1 with the
following changes.
1. Pre-prime the blood chamber using a 3ml syringe of sterile saline to remove air.
2. Stop the blood pump and the dialysate lines.
3. Apply hemostat clamps to both the arterial and venous tubing lines.
4. Disconnect the arterial tubing set from the dialyzer and attach the CRIT-LINE Blood
Chamber to the arterial side of the dialyzer and bloodline in the manner described in
Section 2.1.
NOTE: Post-prime attachment of the blood chamber may introduce air into the
dialyzer and blood chamber. It is therefore important to remove the air in the blood
chamber by inverting the dialyzer and tapping it until all air bubbles have migrated
past the blood chamber to the air trap.
5. Remove the hemostat clamps and restart the blood pump.
6. Ensure the outside of the blood chamber is dry before attaching the sensor clip.
NOTE: Improper attachment of the arterial line to the Disposable Blood Chamber
can cause blood/saline to leak onto and into the Sensor Clip. The connection of the
Disposable Blood Chamber to the arterial line must be leak-proof. This can only be
done by holding the Disposable Blood Chamber (not the dialyzer) securely in one
hand and attaching the arterial line with the other hand, twisting at the wings. Be
careful that you do not cross-thread the connection, and then thoroughly check for
leakage at both connection points before attaching the Sensor Clip. Ensure there is
no kinking in the bloodlines.
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