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Zorluk: OrtaPhysiological Adaptation

A nurse receives a handoff report for a client who is 48 hours48\text{ hours} post-coronary artery bypass graft surgery. The previous shift reports that the mediastinal chest tube drainage abruptly stopped 2 hours2\text{ hours} ago. Upon entering the room, the client appears highly restless and reports a severe sensation of tightness in the chest. Current vital signs reveal a heart rate of 124 beats/min124\text{ beats/min}, a respiratory rate of 24 breaths/min24\text{ breaths/min}, and a blood pressure of 96/82 mm Hg96/82\text{ mm Hg}. Auscultation of the chest reveals muffled heart tones.

Based on these clinical findings, which of the following is the priority nursing action?

  1. Contact the rapid response team and prepare the client for an emergent echocardiogram and pericardiocentesis.Cevap
  2. B
    Initiate a rapid intravenous fluid bolus of normal saline to treat the suspected onset of hypovolemic shock.
  3. C
    Document the cessation of chest tube drainage and reassess the client's hemodynamic status in 15 minutes.
  4. D
    Place the client in the modified Trendelenburg position to facilitate venous return and improve blood pressure.

Cevap

The correct action is to contact the rapid response team and prepare the client for an emergent echocardiogram and pericardiocentesis.
The client is exhibiting classic signs of cardiac tamponade (Beck's triad: hypotension with a narrowing pulse pressure, muffled heart tones, and systemic venous congestion leading to restlessness and chest tightness). The abrupt cessation of chest tube drainage post-coronary artery bypass graft suggests the tube is clotted, causing blood to accumulate in the pericardial space. This is a life-threatening emergency (obstructive shock) that restricts ventricular filling and requires immediate pericardial decompression via pericardiocentesis or surgical re-exploration. The correct action is to activate the rapid response team and prepare for this procedure.

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1
Analyze the client's clinical presentation and vital signs.
The client has a markedly narrowing pulse pressure (96/82 mm Hg96/82\text{ mm Hg}), tachycardia (124 beats/min124\text{ beats/min}), muffled heart tones, and sudden cessation of chest tube drainage.
Identifying these classic findings (Beck's triad) is essential to differentiate the complication from general postoperative pain or simple hypovolemia.
2
Formulate a clinical judgment based on the findings.
The findings strongly indicate cardiac tamponade, caused by blood accumulating in the pericardial sac after the chest tube clotted.
Cardiac tamponade restricts ventricular filling, severely compromising cardiac output and creating a life-threatening obstructive shock state.
3
Determine the highest priority nursing intervention.
Immediate medical intervention to drain the accumulated fluid (pericardiocentesis or surgical re-exploration) is required.
Nursing actions must prioritize activating the emergency response team (ABCs) because cardiac tamponade is rapidly fatal without mechanical decompression.

Anahtar Kavram

Cardiac Tamponade Recognition and Emergency Management
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Konular

Physiological Adaptation

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