Central venous catheteruse Types of catheter

• Single, double, triple or quadruple lumen.

• Sheaths for insertion of pulmonary artery catheter or pacing wire.

• Tunnelled catheter for long term use.

• Multilumen catheters allow multiple infusions to be given separately ± continuous pressure monitoring. Minimises accidental bolus risk.

• Large-bore double lumen catheters used for venovenous dialysis/filtration.

• Common routes are internal jugular, subclavian and femoral.

• 'Long' catheters can be inserted via brachial or axillary veins though are generally not used due to the risk of thrombosis.

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