Renal Colic (Urolithiasis) — Management Guideline
Source: EAU Guidelines on Urolithiasis, European Association of Urology, 2024
Guideline: Strong
Guideline: Conditional
Guideline: Not recommended
ClinicoQ pathway suggestion (not from the cited guideline)
Diagnosis
Diagnostic criteria
Suspected based on acute flank pain radiating to the groin, often with nausea/vomiting and hematuria; confirmed by imaging showing a ureteral or renal stone.
⚠ Alarm features (investigate before diagnosing)
- Fever or signs of infection (an obstructed, infected kidney is a urological emergency)
- Solitary or transplanted kidney with obstruction
- Bilateral obstruction or anuria
- Uncontrolled pain despite analgesia
- Significant deterioration in renal function
Initial workup
| Test | When to order |
|---|---|
| Ultrasound | First-line imaging — avoids radiation, safe and reproducible. |
| Non-contrast low-dose CT | When ultrasound is inconclusive, or stone characterization is needed. |
| Urinalysis + urine culture | In all patients, to assess for infection and hematuria. |
Treatment
Acute pain management
1
NSAID (e.g., diclofenac)
Strong (Guideline recommendation) — first-line over opioids
- Dose
- Diclofenac sodium 100–150 mg/day (oral or suppository, in divided doses); IM dosing may be used for immediate acute pain relief in the emergency setting
- Duration
- 3–10 days
- Evidence level
- High
- Avoid if
- Significant renal impairment, active GI bleeding, cardiovascular disease
- If no response ClinicoQ pathway
- Add an opioid if pain remains uncontrolled; avoid pethidine specifically if an opioid is needed
Facilitating stone passage (medical expulsive therapy)
1
Alpha-blocker (e.g., tamsulosin)
Conditional (Guideline recommendation) — supporting evidence described as conflicting
- Dose
- 0.4 mg once daily
- Duration
- Until stone passage, typically up to 4 weeks
- Evidence level
- Conflicting/Low
- Avoid if
- Symptomatic hypotension; known hypersensitivity
- If no response ClinicoQ pathway
- If analgesia and expulsive therapy fail, proceed to decompression or stone removal
When medical management fails
1
Urgent decompression (stenting or percutaneous nephrostomy) or stone removal
Strong (Guideline recommendation) — mandatory if sepsis or analgesia-refractory pain
- Dose
- —
- Duration
- Urgent
- Evidence level
- High
- Avoid if
- —
- If no response
- —
✕ Treatments the guideline advises against
Pethidine (as the opioid of choice): Guideline specifically advises against pethidine if an opioid is needed — associated with a higher rate of vomiting than other options.
⚠️ This is an educational summary of current international clinical practice guidelines and does not replace individualized clinical judgment. Final treatment decisions remain the responsibility of the treating physician.