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Zorluk: ZorReduction of Risk Potential

A 72-year-old client is admitted to the intensive care unit following an endovascular aneurysm repair (EVAR) for an abdominal aortic aneurysm. The procedure was performed via bilateral femoral artery access. The nurse is performing a continuous post-procedure assessment. Which of the following clinical findings indicate a potential complication that requires IMMEDIATE intervention? (Select all that apply.)

  1. Urine output totaling 25 mL over the past two consecutive hoursCevap
  2. B
    Core body temperature of 37.7°C (99.9°F) four hours post-procedure
  3. Sudden, severe lower back pain that radiates to the client's groinCevap
  4. Absence of a previously palpable +2 left pedal pulse, confirmed by DopplerCevap
  5. E
    Capillary refill time of 2 seconds in the bilateral lower extremities
  6. F
    A 1-cm, non-expanding hematoma at the right femoral catheter insertion site

Cevap

The findings requiring immediate intervention are the oliguria (25 mL over two hours), the sudden severe lower back pain radiating to the groin, and the absent left pedal pulse.
The correct findings represent critical, life-threatening complications following an EVAR procedure. A urine output of 25 mL over two hours (12.5 mL/hr) falls significantly below the minimum expected 30 mL/hr, indicating potential renal artery occlusion (due to stent graft migration) or hypovolemia from internal hemorrhage. Sudden, severe lower back pain radiating to the groin is a classic manifestation of a retroperitoneal hemorrhage or an endoleak (graft failure or rupture). The absence of a previously palpable pedal pulse is a hallmark sign of acute limb ischemia, likely caused by graft thrombosis or distal arterial embolization, requiring immediate emergency evaluation.

Adım Adım Çözüm

1
Analyze the surgical procedure and its associated physiological risks.
EVAR carries specific risks including retroperitoneal hemorrhage, endoleak (graft failure), renal artery occlusion, and distal arterial embolization.
Understanding specific procedure-related risks is essential to guide targeted assessment and recognize early signs of decompensation.
2
Evaluate each assessment finding to distinguish between expected post-operative conditions and life-threatening complications.
Mild fever, small stable hematomas, and normal capillary refill are expected or non-urgent findings. Conversely, oliguria, severe back pain, and loss of peripheral pulses are highly abnormal.
Safe nursing practice requires the ability to prioritize and identify subtle cues of physiological failure.
3
Select the findings that represent an immediate threat to life, limb, or organ viability.
The findings indicating renal ischemia, retroperitoneal hemorrhage, and acute limb ischemia are selected.
These complications require emergency physiological or surgical intervention to prevent irreversible damage.

Anahtar Kavram

Post-operative monitoring and complication identification following Endovascular Aneurysm Repair (EVAR).
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