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Zorluk: OrtaPhysiological Adaptation

A nurse is caring for a client who sustained a closed transverse femur fracture 36 hours ago. The client suddenly becomes highly agitated, reports a feeling of impending doom, and is experiencing severe dyspnea. The nurse notes the appearance of a petechial rash over the client's anterior chest and neck. An arterial blood gas (ABG) analysis is obtained while the client is breathing room air, revealing the following results: pH 7.48, PaCO2PaCO_2 29 mm Hg, PaO2PaO_2 54 mm Hg, and HCO3−HCO_3^- 23 mEq/L. What is the priority nursing action?

  1. Apply high-flow oxygen via a non-rebreather mask.Cevap
  2. B
    Instruct the client to take slow, deep breaths to slow their respiratory rate.
  3. C
    Initiate a rapid intravenous fluid bolus of normal saline.
  4. D
    Prepare to administer an intravenous dose of a thrombolytic agent.

Cevap

The priority action is to apply high-flow oxygen via a non-rebreather mask to address the severe, life-threatening hypoxemia caused by Fat Embolism Syndrome.
The correct answer directly addresses the client's most critical physiological deficit: severe hypoxemia resulting from a fat embolism. Recognizing the triad of FES (hypoxemia, neurological abnormalities, and petechiae) and understanding that the ABG reflects compensatory hyperventilation points to oxygen administration as the undisputed first priority.

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1
Analyze the client's clinical presentation.
The combination of a recent long bone fracture, sudden agitation, dyspnea, and a petechial rash forms the classic triad of signs for Fat Embolism Syndrome (FES).
Recognizing the underlying syndrome is essential to prioritize the correct physiological need and anticipate complications.
2
Interpret the arterial blood gas (ABG) values.
The results show an uncompensated respiratory alkalosis (pH > 7.45, low PaCO2PaCO_2) combined with profound hypoxemia (PaO2PaO_2 < 60 mm Hg).
The alkalosis is a compensatory hyperventilation response driven by the severe lack of oxygen.
3
Determine the most critical priority action.
The immediate application of high-flow oxygen is required to treat the life-threatening hypoxemia.
Addressing airway and breathing deficits takes highest precedence, and oxygenation is the primary supportive treatment for FES.

Anahtar Kavram

Fat Embolism Syndrome (FES) Recognition and Acute Oxygenation
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