Question

Difficulty: Very hardReduction of Risk Potential

A practical nurse (PN) enters the room of a 65-year-old client receiving intravenous fluids and observes that the central venous catheter (CVC) tubing has accidentally disconnected from the injection cap. The client is suddenly grasping their chest, reporting severe shortness of breath, and exhibiting cyanosis. To reduce the risk of a life-threatening complication, in what order should the PN perform the following interventions? (Arrange from first to last)

  1. 1Clamp the exposed central venous catheter.
  2. 2Place the client in the left lateral Trendelenburg position.
  3. 3Initiate oxygen therapy via a non-rebreather mask.
  4. 4Activate the rapid response team and notify the registered nurse.
  5. 5Obtain a complete set of vital signs including oxygen saturation.

Answer

The correct sequence is to first clamp the catheter, position the client in the left lateral Trendelenburg position, initiate oxygen therapy, activate the rapid response team, and finally obtain a full set of vital signs.
In the event of a CVC disconnection and suspected air embolism, the nurse's absolute first priority is to stop further air entry by clamping the line. The second critical step is anatomically trapping the existing air in the right ventricle by placing the client in the left lateral Trendelenburg position, which prevents a fatal pulmonary embolism. Only after these immediate, life-saving mechanical interventions are secured should the nurse administer oxygen to treat hypoxia, activate the rapid response team, and collect vital signs.

Step-by-Step Solution

1
Clamp the exposed central venous catheter.
Air is prevented from continuing to enter the central venous system.
Stopping the source of the air embolus is the most critical and immediate mechanical action required to prevent further hemodynamic collapse.
2
Place the client in the left lateral Trendelenburg position.
Air is trapped in the apex of the right ventricle.
This specific gravitational positioning prevents the air embolus from migrating into the pulmonary artery, which would cause a fatal right ventricular outflow obstruction.
3
Initiate oxygen therapy via a non-rebreather mask.
Systemic oxygenation is increased and the nitrogen bubble size is reduced.
High-concentration oxygen treats the immediate hypoxia caused by the embolus and creates a diffusion gradient that helps absorb the air bubble.
4
Activate the rapid response team and notify the registered nurse.
Advanced medical and collaborative support is mobilized.
Once immediate life-saving physical interventions are established, escalating care is necessary for advanced hemodynamic monitoring and support.
5
Obtain a complete set of vital signs including oxygen saturation.
Baseline hemodynamic data is collected for the rapid response team.
Vital signs provide crucial data to guide ongoing resuscitation, but data collection must always follow life-saving mechanical interventions.

Key Concept

The emergency management of a suspected air embolism requires prioritizing immediate mechanical source control and anatomic isolation before physiological support and care escalation.
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