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HelpTest Code PRO-CR Protein/Creatinine Ratio, Urine
Useful For
Presence in the urine is a sensitive indication of renal disease resulting from either glomerular or tubular dysfunction.
Synonyms/Keywords
PR/CR, Random Urine Quantitative Protein
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 | Sage Cup | 24H Urine Jug, Urine Container (no preservative) | 10.0 mL | 1.0 mL |
Collection/Processing Instructions
Aliquot from random urine, no preservative.
Aliquots taken from a well-mixed 24 hour urine specimen may also be used for testing.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerate | 3 days |
Rejection Criteria
Collections with preservatives; 0.1 N hydrochloric acid, boric acid, or EDTA-thymol
Test Components
Urine Protein and Creatinine
Test Information
Reported results include; quantitative protein (mg/dL), creatinine (mg/dL) and calculated ratio.
Reference Range Information
| Performing Location | Reference Range |
|---|---|
| All Performing Sites |
Protein-Creatinine ratio: 0-24 mos: 0.000 - 0.492 g/g |
Marshfield Labs Performing Department
Marshfield Labs Chemistry
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Beaver Dam | Monday through Sunday | 6-8 hours | Microproteine Benzethonium Chloride/Beckman AU |
| Weston | Monday through Sunday | Less than 2 hours | Microproteine Benzethonium Chloride/Beckman AU |
| Eau Claire | Monday through Sunday | 6-8 hours | Microproteine Benzethonium Chloride/Beckman AU |
| Rice Lake | Monday through Sunday | 6-8 hours | Microproteine Benzethonium Chloride/Beckman AU |
| Marshfield | Monday through Sunday | 6-8 hours | Microproteine Benzethonium Chloride/Beckman AU |
| Minocqua | Monday through Sunday | 6-8 hours | Microproteine Benzethonium Chloride/Beckman AU |
| Neillsville | Monday through Sunday | Less than 2 hours | Pyrogallol Red-Molybdate Method/Siemens Dimension |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 84156 | Total Protein | |||
| 82570 | Creatinine |
Outreach CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 84156 | Total Protein | |||
| 82570 | Creatinine |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Cerner | Protein/Creatinine Ratio Urine |