Question

Difficulty: MediumPhysiological Adaptation

The nurse is changing the intravenous tubing on a client's central venous catheter. During the procedure, the client suddenly gasps for air, grasps their chest, and becomes cyanotic. Arrange the following nursing actions in the correct priority sequence.

  1. 1Clamp the central venous catheter.
  2. 2Place the client in the left lateral Trendelenburg position.
  3. 3Administer 100% oxygen via a non-rebreather mask.
  4. 4Notify the rapid response team and the healthcare provider.
  5. 5Monitor the client's vital signs and respiratory status continuously.

Answer

The correct sequence is to first clamp the central venous catheter, then place the client in the left lateral Trendelenburg position, administer 100% oxygen via a non-rebreather mask, notify the rapid response team and healthcare provider, and finally monitor vital signs and respiratory status continuously.
In the event of a suspected air embolism from a central venous catheter, the immediate priority is to stop further air entry by clamping the line. The next critical action is positioning the client in the left lateral Trendelenburg position, which traps the air in the apex of the right ventricle and prevents it from occluding the pulmonary circulation. Once the embolus is isolated, administering 100% oxygen helps treat hypoxia and promotes the resorption of the nitrogen gas bubble. After these immediate life-saving parameters are secured, the nurse must notify the rapid response team and healthcare provider, followed by continuous monitoring of the client's hemodynamic status.

Step-by-Step Solution

1
Identify the sudden onset of respiratory distress, chest pain, and cyanosis during a central line procedure as a classic presentation of an air embolism.
The nurse recognizes an immediate, life-threatening physiological emergency.
Rapid clinical judgment is required to prioritize actions that stop further harm.
2
Clamp the central venous catheter immediately.
The pathway for air to enter the vascular system is closed.
Stopping the source of air entry is the most critical first step to prevent the embolus from enlarging.
3
Reposition the client to a left lateral Trendelenburg position.
The air bubble rises and becomes trapped in the apex of the right ventricle.
This specific positioning prevents the air from migrating into the pulmonary circulation, which would otherwise cause cardiovascular collapse.
4
Apply high-flow oxygen.
The client receives maximal oxygenation, and nitrogen gradient changes.
Oxygen treats the immediate hypoxia and helps shrink the air embolus by encouraging nitrogen resorption.
5
Call for emergency assistance and initiate continuous monitoring.
Advanced life support providers are alerted, and baseline post-event hemodynamics are established.
While calling for help is essential, it must follow the immediate independent nursing interventions that stabilize the client's physiological state.

Key Concept

Prioritization of care for a client experiencing an air embolism requires immediate mechanical interventions (clamping and positioning) before pharmacological or supportive measures.
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