A 50-year-old female patient presents to the emergency department with severe left flank pain radiating to the groin. CT scan reveals a 6mm calcium oxalate stone in the left ureter. The patient has a history of recurrent kidney stones. Which nursing intervention should be the highest priority?

• 1 Administer prescribed analgesics and monitor pain relief
• 2 Encourage increased fluid intake to promote stone passage
• 3 Strain all urine and monitor for stone fragments
• 4 Assess for signs of urinary obstruction and infection ✓ 정답

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