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Zorluk: OrtaReduction of Risk Potential

A nurse is assessing a 6262-year-old client who returned to the medical-surgical unit 44 hours ago following a partial gastrectomy. The client is receiving continuous IV fluids and has a nasogastric tube set to low intermittent suction. Which of the following assessment findings represent early indicators of physiological decompensation requiring immediate intervention? Select all that apply.

  1. A narrowing pulse pressure from 45 mmHg45 \text{ mmHg} to 25 mmHg25 \text{ mmHg} over the last two hours.Cevap
  2. B
    Nasogastric tube drainage that has transitioned from dark red to dark brown over the past four hours.
  3. New-onset restlessness, unexplained agitation, and a reported sense of impending doom.Cevap
  4. A cumulative urine output of 40 mL40 \text{ mL} via the indwelling catheter over the past 33 hours.Cevap
  5. E
    Arterial blood gas results showing a pH of 7.387.38, PaCO2PaCO_2 of 41 mmHg41 \text{ mmHg}, and HCO3−HCO_3^- of 24 mEq/L24 \text{ mEq/L}.

Cevap

The correct findings indicating decompensation are a narrowing pulse pressure, new-onset restlessness, and a cumulative urine output of 40 mL over 3 hours.
The correct findings collectively represent the early compensatory phase of hypovolemic shock. As circulating blood volume decreases, the body compensates by vasoconstricting (narrowing the pulse pressure) and shunting blood away from non-vital organs to preserve the heart and brain. This shunting leads to decreased renal perfusion (oliguria of 40 mL over 3 hours). Additionally, early cerebral hypoxia manifests neurologically as unexplained restlessness, agitation, and anxiety before major drops in systolic blood pressure occur.

Adım Adım Çözüm

1
Analyze the clinical scenario to determine the client's risk factors.
The client is 4 hours post-partial gastrectomy, placing them at high risk for post-operative hemorrhage and hypovolemic shock.
Identifying the primary post-operative risks directs the focus of the physical assessment toward signs of bleeding and impaired perfusion.
2
Evaluate each assessment finding against the expected post-operative baseline and the pathophysiology of shock.
Narrowing pulse pressure, restlessness, and oliguria (< 30 mL/hr) are identified as abnormal indicators of decreased tissue perfusion.
Early recognition of compensatory shock mechanisms (vasoconstriction leading to narrow pulse pressure, cerebral hypoxia causing agitation, and renal blood shunting causing oliguria) is critical for timely intervention.
3
Distinguish between expected post-operative findings and true complications.
Dark brown NG drainage and normal ABG values are identified as expected or normal findings that do not require immediate emergency intervention.
Preventing unnecessary interventions for normal post-operative healing processes allows the nurse to prioritize truly unstable systemic changes.

Anahtar Kavram

Early recognition of hypovolemic shock and physiological decompensation
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Konular

Reduction of Risk Potential

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