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Zorluk: OrtaPhysiological Adaptation

A telemetry unit nurse is monitoring a client who has a long-standing history of chronic obstructive pulmonary disease. The client was admitted yesterday with a severe lower respiratory tract infection. During the current assessment, the nurse observes that the client is somnolent and only responds to painful stimuli. The respiratory rate has dropped from 26 to 9 breaths per minute. The most recent arterial blood gas analysis reveals a pH of 7.217.21, a PaCO 2_2 of 7878 mmHg, an HCO 3−_3^- of 2929 mEq/L, and a PaO 2_2 of 5454 mmHg. Based on these findings, which of the following is the most appropriate initial action?

  1. Provide immediate ventilatory assistance with a bag-valve-mask device.Cevap
  2. B
    Deliver high-concentration oxygen through a partial rebreather face mask.
  3. C
    Prepare to infuse a continuous intravenous drip of sodium bicarbonate.
  4. D
    Raise the head of the bed to a high Fowler's position and vigorously stimulate the client.

Cevap

Provide immediate ventilatory assistance with a bag-valve-mask device.
The correct action is to provide immediate ventilatory assistance with a bag-valve-mask device. The client is experiencing acute hypercapnic respiratory failure (carbon dioxide narcosis), as evidenced by the severe drop in respiratory rate (9 breaths per minute), altered level of consciousness (somnolent, responds only to pain), and severe respiratory acidosis (pH 7.21, PaCO2 78 mmHg). When a client loses the drive or ability to spontaneously ventilate, the immediate priority is to artificially support their airway and breathing to facilitate gas exchange and remove excess carbon dioxide.

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1
Analyze the client's current clinical presentation.
The client is somnolent, responds only to painful stimuli, and has a respiratory rate of 9 breaths per minute.
Identifying the level of consciousness and respiratory effort is crucial for determining the ability to maintain a patent airway and adequate spontaneous ventilation.
2
Interpret the arterial blood gas (ABG) values.
pH 7.21 indicates severe acidemia. PaCO2 78 mmHg indicates severe hypercapnia. HCO3 29 mEq/L indicates partial compensation. PaO2 54 mmHg indicates severe hypoxemia.
ABG interpretation confirms acute-on-chronic respiratory acidosis resulting from profound alveolar hypoventilation.
3
Synthesize the findings to prioritize the nursing intervention.
The combination of bradypnea, unresponsiveness, and severe respiratory acidosis indicates impending respiratory arrest due to carbon dioxide narcosis.
When a client can no longer spontaneously breathe effectively enough to clear carbon dioxide or maintain oxygenation, manual mechanical ventilation must be initiated immediately prior to endotracheal intubation.

Anahtar Kavram

Management of Acute Hypercapnic Respiratory Failure
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Konular

Physiological Adaptation

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