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HelpTest ID 12PU1 Protein, Total, 12 Hour, Urine
Necessary Information
12-Hour volume is required.
Specimen Required
Supplies: Sarstedt 5 mL Aliquot Tube (T914)
Container/Tube: Plastic, 5 mL tube
Specimen Volume: 4 mL
Collection Instructions:
1. Collect a 12-hour urine specimen. Specimens should be collected before fluorescein is given or not collected until at least 24 hour later.
2. No preservative.
3. Invert well before taking 4-mL aliquot.
4. Do not overfill aliquot tube, 4 mL at most.
Additional Information: See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens for multiple collections.
Useful For
Evaluation of renal disease
Screening for monoclonal gammopathy
Screening for postural (orthostatic) proteinuria
In select clinical situations, collection of a 12-hour specimen may allow more rapid detection of proteinuria states (eg, screening pregnant patients for preeclampsia)
Special Instructions
Method Name
Turbidimetry
Reporting Name
Protein, Total, 12 HR, USpecimen Type
UrineSpecimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 14 days | |
| Frozen | 30 days | ||
| Ambient | 24 hours |
Reference Values
<163 mg/12 hours (day or night collection)
Reference values have not been established for patients <18 years of age.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
84156
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| 12PU1 | Protein, Total, 12 HR, U | 26801-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| TPU12 | Protein, Total, 12 HR, U | 26801-1 |
| TM12A | Collection Duration | 13362-9 |
| VL12A | Urine Volume | 13620-0 |
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Day(s) Performed
Monday through Sunday