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HelpTest Code URIC-CR Uric Acid/Creatinine Ratio, Urine
Synonyms/Keywords
Uric Acid/ Creat Ratio
Specimen Requirements
| Fasting Required | Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|---|
| No | Urine | Urine Jug Urine Container | 10 mL aliquot | 1 mL aliquot |
Collection/Processing Instructions
Aliquot from a second-morning random urine collected preferably between 8 - 11 am. For untrained children, collect between 6 am - 11 am. No preservative is required.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine - No Preservative | Ambient | 2 hours |
| Refrigerate | 4 days | |
| Urine - With Preservative | Refrigerate | 7 days |
Rejection Criteria
Acidified urine
Test Components
Urine Uric Acid and Creatinine
Reference Range Information
| Performing Location | Reference Range |
|---|---|
| Marshfield | 0-6 months: 1.18-2.38 mg/mg 7 mo-12 mo: 1.04-2.23 mg/mg 1-2 yrs: 0.74-2.08 mg/mg 2-3 yrs: 0.69-1.93 mg/mg 4-5 yrs: 0.59-1.64 mg/mg 6-7 yrs: 0.44-1.19 mg/mg 8-10 yrs: 0.38-0.83 mg/mg 11-14 yrs: 0.29-0.65 mg/mg ≥14 yrs: 0.33-0.57 mg/mg |
Marshfield Labs Performing Department
Marshfield Labs Chemistry
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Marshfield | Monday through Sunday | 6-8 hours | Uricase & Jaffe reaction/Beckman AU |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 84560 | Uric acid | |||
| 82570 | Creatinine |
Outreach CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 84560 | Uric acid | |||
| 82570 | Creatinine |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Cerner | Uric Acid/Creatinine Urine Ratio |