12. Thread dilator(s) over guidewire into the vessel (a slight twisting
motion may be used). Remove dilator(s) when vessel is sufficiently
dilated, leaving guidewire in place.
Caution: Insufficient tissue dilation can cause compression of the
catheter lumen against the guidewire causing difficulty in the insertion
and removal of the guidewire from the catheter. This can lead to bending
of the guidewire.
Caution: Do not leave vessel dilator(s) in place as an indwelling catheter
to avoid possible vessel wall perforation.
13. Thread the proximal end of the guidewire through the distal tip of
the stylet.
14. Once the guidewire exits through the red luer connector, hold the
guidewire securely and advance the catheter over the guidewire
and into the target vein, making sure to hold the arterial and
venous tips securely to prevent the venous lumen from kinking and
the stylet tip from retracting into the catheter during insertion.
Caution: Do not advance guidewire with catheter into vein. Cardiac
arrhythmias may result if guidewire is allowed to pass into the right
atrium. The guidewire should be held securely during this procedure.
15. Remove the guidewire and stylet leaving catheter in place.
16. Make any adjustments to catheter under fluoroscopy. The venous
distal tip should be positioned at the level of the caval atrial
junction or into the right atrium to ensure optimal blood flow.
17. Attach syringes to both extensions and open clamps. Blood should
aspirate easily from both arterial and venous sides. If either side
exhibits excessive resistance to blood aspiration, the catheter may
need to be rotated or repositioned to obtain adequate blood flow.
18. Once adequate aspiration has been achieved, both lumens should
be irrigated with saline filled syringes using quick bolus technique.
Assure that extension clamps are open during irrigation procedure.
19. Close the extension clamps, remove the syringes, and place an
injection cap on each luer lock connector. Avoid air embolism by
keeping extension tubing clamped at all times, when not in use
and by aspirating then irrigating the catheter with saline prior to
each use. With each change in tubing connections, purge air from
the catheter and all connecting tubing and caps.
20. To maintain patency, a heparin lock must be created in both
lumens. Refer to hospital heparinization guidelines.
Caution: Assure that all air has been aspirated from the catheter and
extensions. Failure to do so may result in air embolism.
21. Once the catheter is locked with heparin, close the clamps and
install injection caps onto the extensions' female luers.
22. Confirm proper tip placement with fluoroscopy. The distal venous
tip should be positioned at the level of the caval atrial junction or
into the right atrium to ensure optimal blood flow (as
recommended in current NKF DOQI Guidelines).
Caution: Failure to verify catheter placement may result in serious
trauma or fatal complications.
CATHETER SECUREMENT AND WOUND DRESSING:
23. Suture the catheter to the skin using the suture wing. Do not suture
catheter tubing.
Caution: Care must be taken when using sharp objects or needles in
close proximity to catheter lumen. Contact from sharp objects may cause
catheter failure.
Note: If using StatLock
the Lock Right
backing of one side of the StatLock
positioned, remove the remaining protective backing. Apply slight
pressure on the pad to assure adherence. Push the collar section of the
Lock Right
Adapter into the receiving grooves of the StatLock
®
Repeat for second adapter.
24. Cover the exit site with occlusive dressing.
for catheter securement, clean the area where
®
Adapter will lie on the patient with alcohol. Remove the
®
pad and position on patient. Once
®
-5-
pad.
®