Kidney function
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Creatinine Clearance Test - Urine Test
Also known as: Creatinine clearance test, 24 hour urine creatinine clearance, Kidney filtration test
- Blood + urine
- 2–5 days
- Home pickup
- No fasting needed
Clinical use cases
Why doctors order it- Clinician-led kidney filtration assessment in selected contexts
- Monitoring kidney function where timed clearance adds value
- Evaluation requiring accurate 24-hour urine collection
- Timed urine-based estimate of kidney filtration
- Requires 24-hour urine collection plus blood creatinine
- Accuracy depends on complete collection and correct timing