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Difficulty: HardReduction of Risk Potential

A 7272-year-old client with advanced emphysema is admitted to the progressive care unit with acute respiratory failure. The client is receiving noninvasive positive pressure ventilation (NIPPV). During the reassessment, the nurse notes copious, thick pulmonary secretions, extreme agitation, and a respiratory rate of 3232 breaths/minute. The most recent arterial blood gas (ABG) analysis reveals a pH of 7.257.25, PaCO2\text{PaCO}_2 of 7474 mmHg, HCO3−\text{HCO}_3^- of 3232 mEq/L, and PaO2\text{PaO}_2 of 5454 mmHg. To mitigate the risk of impending physiological collapse, which action should the nurse implement?

  1. Discontinue the noninvasive positive pressure ventilation, initiate manual bag-valve-mask ventilation, and prepare for endotracheal intubation.Answer
  2. B
    Administer a prescribed intravenous sodium bicarbonate bolus to rapidly correct the underlying metabolic acidosis.
  3. C
    Lower the head of the bed to a flat, supine position to facilitate effective postural drainage of the copious pulmonary secretions.
  4. D
    Apply bilateral soft wrist restraints to ensure the noninvasive ventilation mask remains securely in place against the client's face.

Answer

The nurse must discontinue the noninvasive positive pressure ventilation, begin manual bag-valve-mask ventilation, and prepare for immediate endotracheal intubation.
The correct action directly mitigates the highest risk to the client: imminent respiratory arrest. The combination of extreme agitation (a classic sign of severe hypoxia), copious secretions, and a drastically worsening ABG profile (pH 7.257.25, PaCO2\text{PaCO}_2 7474 mmHg) demonstrates that noninvasive positive pressure ventilation has failed. The client can no longer protect their airway, making immediate endotracheal intubation the only safe and effective intervention.

Step-by-Step Solution

1
Analyze the arterial blood gas (ABG) results.
The ABG reveals uncompensated respiratory acidosis (pH 7.257.25, PaCO2\text{PaCO}_2 7474 mmHg) and severe hypoxemia (PaO2\text{PaO}_2 5454 mmHg).
Accurate ABG interpretation is essential to determine the adequacy of the client's current ventilation and oxygenation status.
2
Evaluate the clinical signs and symptoms in conjunction with the NIPPV therapy.
The presence of copious secretions and extreme agitation are identified as absolute contraindications for continuing NIPPV.
NIPPV masks block the expulsion of thick secretions, increasing aspiration risk, while agitation signals profound tissue hypoxia and air hunger.
3
Determine the priority risk-reduction intervention.
The decision is made to abandon the failing NIPPV strategy and secure a definitive airway.
When noninvasive measures fail to reverse life-threatening respiratory acidosis and airway protection is compromised, immediate endotracheal intubation is required to prevent respiratory arrest.

Key Concept

Recognizing the failure of noninvasive positive pressure ventilation (NIPPV) and identifying indications for immediate endotracheal intubation.
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Topics

Reduction of Risk Potential

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