NCLEX Review Guide: Treatment Options for Renal Calculi

Medical Management for Small Stones

• Hydration therapy is the cornerstone of conservative treatment, requiring 2-3 liters of fluid daily to facilitate stone passage. Monitor urine output and ensure adequate dilution to prevent further stone formation.
• Alpha-blockers (tamsulosin) relax ureteral smooth muscle, increasing stone passage rates for stones 4-10mm in diameter. Educate patients about potential orthostatic hypotension and dizziness.
• Pain management with NSAIDs or opioids is essential, as renal colic can cause severe, intermittent pain radiating from flank to groin. Monitor for signs of obstruction and infection.

Minimally Invasive Procedures

• Extracorporeal Shock Wave Lithotripsy (ESWL) uses shock waves to fragment stones into passable pieces, most effective for stones <2cm in renal pelvis. Pre-procedure requires bowel preparation and post-procedure monitoring for hematuria.
• Ureteroscopy with laser lithotripsy involves direct visualization and fragmentation of ureteral stones using a flexible scope. Monitor for ureteral perforation and stricture formation.
• Percutaneous nephrolithotomy (PCNL) is indicated for large stones >2cm or staghorn calculi, involving direct kidney access through a small incision. Post-operative care includes nephrostomy tube management and monitoring for bleeding.

Immediate Post-Procedure Care

1. Monitor vital signs and assess for signs of bleeding, especially after PCNL procedures
2. Maintain adequate hydration to flush stone fragments and prevent obstruction
3. Assess pain levels and administer analgesics as ordered, noting pain characteristics
4. Monitor urine output and characteristics, documenting color, clarity, and presence of clots
5. Educate patient on signs of complications requiring immediate medical attention

Dietary and Lifestyle Modifications

• Increased fluid intake to 2.5-3 liters daily maintains urine dilution and prevents crystal formation. Clear, pale yellow urine indicates adequate hydration status.
• Dietary modifications based on stone composition: limit oxalate-rich foods for calcium oxalate stones, reduce purine intake for uric acid stones. Stone analysis guides specific dietary restrictions.
• Medication therapy may include thiazide diuretics for hypercalciuria, allopurinol for hyperuricemia, or potassium citrate for acidic urine. Monitor electrolytes and kidney function regularly.