Question

Difficulty: MediumReduction of Risk Potential

A nurse is preparing to discontinue a client's non-tunneled central venous catheter (CVC) from the internal jugular vein. In what order should the nurse perform the following actions to minimize the risk of complications? Arrange the steps in the correct sequence from first to last.

  1. 1Position the client flat in a supine position.
  2. 2Remove the current dressing and release any securement devices.
  3. 3Instruct the client to take a deep breath, hold it, and bear down.
  4. 4Withdraw the catheter in a smooth, continuous motion.
  5. 5Apply a sterile, occlusive dressing immediately over the insertion site.

Answer

The correct sequence is: position the client supine, remove the dressing and securements, instruct the client to perform the Valsalva maneuver, withdraw the catheter, and immediately apply a sterile occlusive dressing.
Removing a central venous catheter carries a high risk of air embolism. The proper sequence of actions is designed to manipulate intrathoracic and venous pressure to prevent air from entering the central circulation. The client must first be positioned supine to increase central venous pressure. After preparing the site by removing securements, the client performs the Valsalva maneuver to create positive intrathoracic pressure. The catheter must be withdrawn precisely during this maneuver, and the site is immediately sealed with an occlusive dressing to prevent air entry through the open tissue tract.

Step-by-Step Solution

1
Position the client flat in a supine position.
Central venous pressure is increased in the upper body.
This is the initial critical step to create a pressure gradient that discourages air from entering the central circulation.
2
Remove the current dressing and release any securement devices.
The catheter is free and ready for removal.
Securements must be removed prior to having the client hold their breath, as the client should only hold their breath for a brief period.
3
Instruct the client to take a deep breath, hold it, and bear down.
Intrathoracic pressure is maximized.
This action (Valsalva maneuver) creates positive pressure inside the central veins, acting as a functional barrier against an air embolism.
4
Withdraw the catheter in a smooth, continuous motion.
The catheter is removed from the vein.
Pulling the catheter during the Valsalva maneuver ensures the vein is under positive pressure exactly when the tract is opened to the atmosphere.
5
Apply a sterile, occlusive dressing immediately over the insertion site.
The insertion tract is sealed.
An airtight seal prevents atmospheric air from traveling down the tissue tract into the vein after the catheter is completely out.

Key Concept

Safe removal of a central venous catheter requires meticulous technique focused on preventing air embolism, primarily achieved through supine positioning, the Valsalva maneuver, and immediate application of an occlusive dressing.
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