Question

Difficulty: HardReduction of Risk Potential

While conducting hourly rounds, a nurse observes that the intravenous administration set has completely disconnected from a client's central venous catheter hub. The client abruptly exhibits severe dyspnea, a dry cough, and grasps their chest in distress. In which sequence must the nurse execute the following interventions? (Arrange the actions in order of clinical priority, from first to last.)

  1. 1Clamp the central venous catheter.
  2. 2Place the client in the left lateral Trendelenburg position.
  3. 3Administer 100% oxygen via a non-rebreather face mask.
  4. 4Activate the rapid response team.
  5. 5Measure the client's vital signs and oxygen saturation.

Answer

The nurse must first clamp the catheter, then place the client in a left lateral Trendelenburg position, administer high-flow oxygen, activate the rapid response team, and finally obtain vital signs.
An air embolism is a life-threatening complication of central venous access devices that occurs when the system is open to atmospheric pressure. The sequence of actions follows the principle of immediate risk reduction and airway/breathing stabilization. The absolute first priority is to stop the source of the air by clamping the catheter. Next, positioning the client on their left side with the head down (Trendelenburg) uses gravity to trap the air in the apex of the right ventricle, preventing a fatal pulmonary artery occlusion. After securing the source and mitigating migration, 100% oxygen is applied to treat hypoxia and shrink the nitrogen-rich air bubble. Finally, the nurse calls for advanced help and assesses vital signs to guide the team's ongoing resuscitation efforts.

Step-by-Step Solution

1
Clamp the central venous catheter.
Stops the entrainment of air.
The absolute first priority is removing the immediate hazard by closing the pathway that allows air to enter the bloodstream.
2
Place the client in the left lateral Trendelenburg position.
Traps the air embolus in the right ventricle.
This maneuver prevents the air from advancing into the pulmonary artery, averting a right ventricular outflow tract obstruction.
3
Administer 100% oxygen via a non-rebreather face mask.
Relieves hypoxia and reduces the size of the embolus.
Providing 100% oxygen promotes the diffusion of nitrogen out of the air bubble, effectively shrinking the embolus while treating ischemia.
4
Activate the rapid response team.
Mobilizes advanced medical support.
Additional personnel and advanced interventions are necessary, but calling for help must not delay the initial life-saving physical maneuvers.
5
Measure the client's vital signs and oxygen saturation.
Establishes a baseline for the responding team.
Assessment data is required to evaluate the severity of the physiological decompensation, but it is the lowest priority compared to active resuscitation efforts.

Key Concept

Prioritization of immediate risk mitigation for central venous access device (CVAD) complications, specifically suspected air embolism.
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