COOK Medical Turbo-Flo Gebrauchsanweisung Seite 6

Catheter Tip Positioning
Verify catheter tip position using radiography or appropriate technology. In
order to guarantee extrapericardial location, the catheter tip should be
located above the SVC-RA junction, within the lower 1/3 of the SVC. Every
effort must be made to ascertain proper tip position in order to prevent
erosion or perforation of the central venous system and to ensure proper
delivery of infusates.
Catheter Maintenance
Catheter entry site must be prepared and maintained in a manner consistent
with standard procedure for central venous catheterization. After catheter
placement and prior to use, tip position and lumen patency should be
confirmed by free aspiration of venous blood. If blood is not freely
aspirated, catheter tip position should be immediately reevaluated. If
catheter is not to be used immediately, its lumen should be maintained by
continuous saline or heparinized saline drip or locked with heparinized saline
solution. Catheter heparinization should be determined by institutional
protocol and clinical judgement. Heparin concentrations of 10 Units/ml to
100 Units/ml have been reported adequate to maintain lumen patency.
(Reference 3) Heparin lock should be reestablished after every use or at least
every 24 hours if unused. Before using catheter lumen already locked with
heparin, lumen should be flushed with twice the indicated lumen volume
using normal saline. Lumen should be flushed with normal saline between
administration of different infusates. After use, lumen should again be
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