Question

Difficulty: MediumAccident, Error, and Injury Prevention

A nurse enters a client's room and discovers that the intravenous tubing has completely disconnected from the hub of the client's central venous catheter. The client is suddenly coughing, pale, and reporting severe chest pain and shortness of breath. Arrange the following nursing interventions in the correct order of priority to prevent further injury.

  1. 1Clamp the exposed central venous catheter immediately.
  2. 2Position the client in the left lateral Trendelenburg position.
  3. 3Administer high-flow oxygen via a non-rebreather mask.
  4. 4Activate the facility's rapid response team.
  5. 5Assess the client's vital signs and continuous oxygen saturation.

Answer

The correct priority sequence is to first clamp the catheter, then position the client on their left side in Trendelenburg, followed by administering 100% oxygen, calling the rapid response team, and finally assessing vital signs.
An open and disconnected central venous catheter creates a direct pathway for atmospheric air to enter the vascular space, creating a high risk for a fatal air embolism. The immediate priority is always to physically stop the flow of air by clamping the catheter. Next, placing the client in the left lateral Trendelenburg position (Durant's maneuver) utilizes gravity to encourage the air bubble to rise to the apex of the right ventricle, preventing it from obstructing the pulmonary outflow tract. Administering 100% oxygen addresses the resulting severe hypoxia and assists in washing out nitrogen, which reduces the size of the air bubble. After securing these immediate, life-saving measures, the nurse must activate the rapid response team to secure advanced medical support. Finally, obtaining a complete set of vital signs provides necessary data to monitor for hemodynamic collapse while awaiting the emergency team.

Step-by-Step Solution

1
Stop the source of the hazard.
The central venous catheter is clamped.
Prevents any further introduction of atmospheric air into the venous system.
2
Trap the air embolus anatomically.
The client is placed in the left lateral Trendelenburg position.
Keeps the air bubble confined within the right atrium and right ventricle, preventing a fatal pulmonary artery occlusion.
3
Treat hypoxia and reduce embolus size.
Oxygen is applied via a non-rebreather mask.
Addresses the ventilation-perfusion mismatch and speeds up the resorption of nitrogen gas from the bubble.
4
Summon advanced help.
The rapid response team is activated.
The client requires emergency medical evaluation and potential advanced interventions for hemodynamic collapse.
5
Monitor the client's status.
Vital signs and oxygen saturation are measured.
Provides objective data on the client's condition and their physiological response to the initial interventions.

Key Concept

Management of a suspected central line air embolism requires immediate mechanical prevention of further air entry, anatomical trapping of the embolus, and correction of hypoxia.
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