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Zorluk: Çok zorReduction of Risk Potential

A 62-year-old client is in the progressive care unit 8 hours after a left pneumonectomy. The client appears lethargic and is receiving supplemental oxygen at 3 L/min via nasal cannula. During the assessment, the nurse observes the client lying in a right lateral decubitus position. The most recent arterial blood gas (ABG) values are as follows:

ParameterResult
pH7.28
PaCO2PaCO_258 mm Hg
HCO3−HCO_3^-25 mEq/L
PaO2PaO_264 mm Hg

Based on these clinical findings, what is the priority nursing action to reduce the risk of a life-threatening physiological complication?

  1. Assist the client into a supine or left lateral position to facilitate maximal expansion of the remaining lung.Cevap
  2. B
    Maintain the right lateral position to optimize ventilation-perfusion matching in the non-operative lung.
  3. C
    Increase the oxygen flow rate to address the hypoxemia shown in the blood gas analysis.
  4. D
    Prepare for intravenous sodium bicarbonate administration to reverse the uncompensated metabolic acidosis.

Cevap

Assist the client into a supine or left lateral position to facilitate maximal expansion of the remaining lung.
The client is experiencing acute uncompensated respiratory acidosis due to severe hypoventilation. Following a pneumonectomy, placing the client on the unoperated side (the right side, in this case) restricts the expansion of the sole functioning lung due to gravity and the weight of the mediastinum. To prevent a dangerous mediastinal shift and optimize gas exchange, the client must be positioned supine or on the operative side (left lateral). This allows the remaining functional lung to fully expand, which will improve ventilation and resolve the hypercapnia.

Adım Adım Çözüm

1
Analyze the arterial blood gas (ABG) values.
The ABG reveals uncompensated respiratory acidosis (low pH of 7.28, high PaCO2PaCO_2 of 58 mm Hg) accompanied by hypoxemia.
An elevated PaCO2PaCO_2 indicates acute hypoventilation and CO2CO_2 retention.
2
Correlate the clinical findings with the surgical history.
The client had a left pneumonectomy, meaning the right lung is the only remaining functional lung in the thoracic cavity.
Understanding the anatomical alteration is necessary to pinpoint the mechanical cause of the hypoventilation.
3
Evaluate the physiological impact of the client's current physical position.
The client is in a right lateral decubitus position, which mechanically compresses the right lung due to gravity and body weight.
Positional restriction of the sole functioning lung is preventing adequate chest excursion, leading to the hypoventilation and resulting acidosis.
4
Determine the corrective priority action to reduce further risk.
Reposition the client to the supine or left lateral (operative) position.
This frees the non-operative lung to expand fully, thereby improving ventilation mechanics and reversing the life-threatening hypercapnia.

Anahtar Kavram

Post-pneumonectomy Positioning and Respiratory Acidosis
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Konular

Reduction of Risk Potential

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