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Zorluk: ZorPhysiological Adaptation

An adult client is receiving treatment for acute necrotizing pancreatitis on the medical-surgical unit. Over the past two hours, the client has become increasingly agitated. Current assessment reveals a heart rate of 122 bpm122\text{ bpm}, a blood pressure of 98/80 mm Hg98/80\text{ mm Hg}, and a respiratory rate of 28 breaths/min28\text{ breaths/min}. Arterial blood gas (ABG) results on room air demonstrate a pH of 7.497.49, PaCO2\text{PaCO}_2 of 29 mm Hg29\text{ mm Hg}, PaO2\text{PaO}_2 of 56 mm Hg56\text{ mm Hg}, and HCO3−\text{HCO}_3^- of 23 mEq/L23\text{ mEq/L}. Based on these findings, which action should the nurse implement first?

  1. Apply a non-rebreather mask at 15 L/min15\text{ L/min} and notify the rapid response teamCevap
  2. B
    Coach the client to take slow, deep breaths to resolve the respiratory alkalosis
  3. C
    Administer a prescribed dose of intravenous hydromorphone to decrease metabolic demand
  4. D
    Increase the rate of the continuous isotonic intravenous fluid infusion

Cevap

The correct priority action is to apply a non-rebreather mask at 15 L/min and notify the rapid response team.
The correct action addresses the most immediate life-threatening issue. The client's ABG reveals severe hypoxemia (PaO2\text{PaO}_2 of 56 mm Hg56\text{ mm Hg}, where normal is 80−100 mm Hg80-100\text{ mm Hg}). The respiratory alkalosis is a secondary compensatory response to the lack of oxygen; as the client breathes faster to obtain oxygen, they blow off excessive CO2\text{CO}_2. Furthermore, the client's vital signs (tachycardia and a very narrow pulse pressure of 18 mm Hg18\text{ mm Hg}) indicate impending shock. Administering high-flow oxygen and escalating care via the rapid response team directly addresses the compromised breathing and prevents imminent respiratory arrest.

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1
Analyze the hemodynamic vital signs.
The client has a narrow pulse pressure (18 mm Hg18\text{ mm Hg}) and tachycardia (122 bpm122\text{ bpm}).
These are subtle but critical early indicators of hypovolemic shock caused by fluid third-spacing in severe pancreatitis.
2
Interpret the Arterial Blood Gas (ABG) values.
The pH (7.497.49) and PaCO2\text{PaCO}_2 (29 mm Hg29\text{ mm Hg}) indicate respiratory alkalosis. Crucially, the PaO2\text{PaO}_2 (56 mm Hg56\text{ mm Hg}) reveals severe hypoxemia.
Accurate ABG interpretation is required to distinguish primary hyperventilation from compensatory hyperventilation driven by a lack of oxygen.
3
Synthesize the clinical picture.
The client is experiencing both early shock and acute respiratory compromise (likely early Acute Respiratory Distress Syndrome, a major complication of pancreatitis).
Agitation is a classic sign of hypoxia, and the respiratory alkalosis is a desperate attempt by the body to draw in more oxygen.
4
Prioritize the nursing interventions using the ABCs framework.
Airway and Breathing (correcting the PaO2\text{PaO}_2 of 56 mm Hg56\text{ mm Hg}) take absolute priority over Circulation (fluid administration) or pain management.
Failure to immediately correct severe hypoxemia will rapidly lead to cardiac arrest, regardless of other supportive measures.

Anahtar Kavram

Prioritization of care in multi-system complications of acute pancreatitis (ARDS and hypovolemic shock)
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Konular

Physiological Adaptation

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