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Difficulty: Very hardPhysiological Adaptation

A client is 6 hours post-coronary artery bypass graft (CABG) surgery and is receiving mechanical ventilation. The intensive care nurse notes that the mediastinal chest tube drainage, which had been steadily draining 100 mL/hr100\text{ mL/hr}, has abruptly ceased over the past 45 minutes. The client's blood pressure drops from 115/75 mmHg115/75\text{ mmHg} to 82/64 mmHg82/64\text{ mmHg}, heart rate increases from 85 bpm85\text{ bpm} to 128 bpm128\text{ bpm}, and central venous pressure (CVP) rapidly rises from 8 mmHg8\text{ mmHg} to 19 mmHg19\text{ mmHg}. Jugular venous distension is visible. The nurse suspects acute cardiac tamponade. Place the following collaborative and nursing actions in the correct priority sequence.

  1. 1Auscultate the client's precordium for distant, muffled heart sounds.
  2. 2Notify the cardiothoracic surgeon and activate the rapid response team.
  3. 3Administer a prescribed rapid intravenous bolus of 0.9% sodium chloride.
  4. 4Facilitate a stat bedside echocardiogram.
  5. 5Assemble the pericardiocentesis tray and prepare for emergency chest reopening.

Answer

The correct sequence is: 1) Auscultate the precordium for muffled heart sounds, 2) Notify the cardiothoracic surgeon, 3) Administer a rapid IV fluid bolus, 4) Facilitate a stat bedside echocardiogram, and 5) Assemble the pericardiocentesis tray.
The correct sequence strictly follows the nursing process and emergency prioritization (Assessment -> Escalation -> Temporizing Intervention -> Diagnostics -> Definitive Procedure). In obstructive shock from cardiac tamponade, immediate recognition (assessing Beck's triad) must precede calling the provider. Once help is activated, a fluid bolus is the priority medical intervention to increase preload and overcome pericardial compression. Diagnostics (echocardiogram) confirm the effusion, followed by preparation for the definitive procedure (pericardiocentesis or chest reopening).

Step-by-Step Solution

1
Assess for muffled heart sounds.
Completes the rapid focused assessment for Beck's triad.
Before calling the provider, the nurse must quickly gather all necessary clinical data to provide a comprehensive and accurate SBAR report.
2
Notify the surgeon and rapid response team.
Escalates the critical situation to providers.
Cardiac tamponade cannot be resolved with nursing interventions alone; it requires immediate procedural intervention to prevent cardiac arrest.
3
Administer the prescribed IV fluid bolus.
Increases right-sided cardiac preload.
A fluid bolus temporarily increases venous return to force blood into the compressed right heart, maintaining cardiac output until the effusion can be drained.
4
Facilitate a stat bedside echocardiogram.
Provides diagnostic confirmation.
The medical team uses ultrasound to visualize the pericardial fluid and right ventricular collapse prior to performing an invasive needle insertion.
5
Assemble the pericardiocentesis tray.
Prepares the environment for definitive treatment.
Once confirmed, the fluid must be physically drained via pericardiocentesis or emergency sternotomy to permanently relieve the obstructive shock.

Key Concept

Hemodynamic management and prioritization of obstructive shock (cardiac tamponade)
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Topics

Physiological Adaptation

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