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22992 Protein/Creatinine Ratio, Urine

Protein/Creatinine Ratio, Urine
Test Code: PRO-CR
Synonyms/Keywords
PR/CR, Random Urine Quantitative Protein​
Test Components
Urine Protein and Creatinine​
Useful For
Presence in the urine is a sensitive indication of renal disease resulting from either glomerular or tubular dysfunction.​
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
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center​ ​Monday through Sunday​ ​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
Marshfield​ Monday through Sunday​ 6-8 hours​ Microproteine Benzethonium Chloride/Beckman AU
​Minocqua ​Monday through Sunday​ ​​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
​Neillsville​Monday through Sunday​​​​Less than 2 hours​​Pyrogallol Red-Molybdate Method/Siemens Dimension
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
> 24 mos: 0.000 - 0.165​ g/g

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84156   ​ ​ ​  Total Protein  ​ ​
82570​ ​ ​  Creatinine​ ​
Synonyms/Keywords
PR/CR, Random Urine Quantitative Protein​
Test Components
Urine Protein and Creatinine​
Ordering Applications
Ordering Application Description
​Centricity ​Protein/Creat Ratio
​Cerner ​Protein/Creatinine Ratio Urine
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
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
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
Useful For
Presence in the urine is a sensitive indication of renal disease resulting from either glomerular or tubular dysfunction.​
Test Components
Urine Protein and Creatinine​
Reference Range Information
Performing Location Reference Range
All Performing Sites

Protein-Creatinine ratio:

0-24 mos: 0.000 - 0.492 g/g
> 24 mos: 0.000 - 0.165​ g/g

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center​ ​Monday through Sunday​ ​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
Marshfield​ Monday through Sunday​ 6-8 hours​ Microproteine Benzethonium Chloride/Beckman AU
​Minocqua ​Monday through Sunday​ ​​Less than 2 hours ​Pyrogallol Red-Molybdate Method/Siemens Dimension
​Neillsville​Monday through Sunday​​​​Less than 2 hours​​Pyrogallol Red-Molybdate Method/Siemens Dimension
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84156   ​ ​ ​  Total Protein  ​ ​
82570​ ​ ​  Creatinine​ ​
For most current information refer to the Marshfield Laboratory online reference manual.