Treatment of Renal Colic with a Distal Ureteral Stone 5 to 10 mm in Diameter
Clinical Scenario
This protocol addresses patients presenting with renal colic caused by a distal ureteral stone measuring 5 to 10 mm in diameter — a size range where conservative pharmacological management is the recommended first step, with the goal of achieving spontaneous stone passage.
Indicated Patient Population
These medications should be offered to patients with distal ureteral stones 5 to 10 mm in diameter, where the stone size and location make spontaneous expulsion achievable with appropriate pharmacological support.
Treatment Approach — Partial Overview
Management involves acute pain control using a non-steroidal anti-inflammatory agent, combined with medical expulsive therapy to facilitate stone passage. The complete regimen — specific agents, dosing, sequence, and decision thresholds — is available in the full structured protocol.
Spontaneous stone passage within 4–6 weeks
Pain reduction
References
- These medications should be offered to patients with distal ureteral stones 5 to 10 mm in diameter.
- Nonsteroidal anti-inflammatory drugs (e.g., ketorolac, 30 to 60 mg intramuscularly) are more effective and have fewer adverse effects than opioids.
- Medical expulsive therapy with alpha blockers (e.g., tamsulosin [Flomax], 0.4 mg per day; doxazosin [Cardura], 4 mg per day) hastens and increases the likelihood of stone passage, reduces pain, and prevents surgical interventions and hospital admissions.
- Patients with well-controlled pain and no significant degree of hydronephrosis have only partial obstruction and can be followed for about four to six weeks.
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