| Test Name: |
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Protein/Creatinine Ratio
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| Test Code(s): |
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UPRCR / HCUPCRC
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| CPT Code(s): |
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84156, 82570
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| Test Description: |
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Test Component: Urine protein, urine creatinine, and calculated ratio. The protein/creatinine ratio will also be calculated and reported if a random urine creatinine and random urine protein are ordered on the same urine collection.
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: 1 hour.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Random urine
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| Collection Container: |
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Preferred: Sterile screw cap container
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| Collection Volume: |
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Preferred: Entire collection
Pediatrics: Entire collection
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| Sample Analyzed: |
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Urine aliquot
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| Volume Required: |
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Preferred: 1 mL
Pediatrics: 0.4 mL
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| Specimen Processing: |
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Mix specimen. Transfer up to 10 mL into a screw cap container. Refrigerate specimen. Do not freeze.
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| Specimen Transport: |
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Transport entire specimen to UWHC Core Laboratory (B4/220) at close of collection. Transport with coolant pack if coming from outreach location.
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| Unacceptable Criteria: |
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Collection container contaminated with preservative is not acceptable.
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| Stability: |
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Refrigerated: 7 days
Frozen: Not acceptable
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Interpretation
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Reference Interval:
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Protein/Creatinine calculated ratio:
| 0 days - 24 months: |
0.00 - 0.50 |
| 25 months and up: |
0.00 - 0.15 |
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