Home
HelpTest Code MPQU Monoclonal Protein Quantitation, 24 Hour, Urine
Additional Codes
Outreach (Atlas) Order Code
EPU
Hospital (Cerner) Order Code
MPQU
Shipping Instructions
Refrigerate specimen during collection and send refrigerated.
Necessary Information
24-Hour volume (in milliliters) is required.
Specimen Required
Supplies: Urine Container, 60 mL (T313)
Submission Container/Tube: Plastic, 60-mL urine bottle
Specimen Volume: 50 mL
Collection Instructions:
1. Collect urine for 24 hours.
2. Aliquot between 30 mL and 50 mL urine into plastic, 60-mL urine bottle.
Additional Information: See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens for multiple collections.
Secondary ID
616907Useful For
Monitoring patients with monoclonal gammopathies using 24-hour urine collections
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| PTU3 | Protein, Total, 24 HR, U | Yes, (Order PTU) | Yes |
| PEU | Protein Electrophoresis, 24 Hr, U | No | Yes |
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| MPTU | M-protein Mass-Fix, 24 HR, U | No | No |
Testing Algorithm
Urine protein electrophoresis alone is not considered an adequate screening for monoclonal gammopathies.
If a discrete electrophoresis band is identified, the laboratory will evaluate the urine protein electrophoresis and, if necessary, perform urine M-protein isotyping by Mass-Fix at an additional charge.
The following algorithms are available:
Special Instructions
Method Name
PTU3: Turbidimetry
PEU: Agarose Gel Electrophoresis
MPTU: Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS)
Reporting Name
M-protein Quantitation, 24 HR, USpecimen Type
UrineSpecimen Minimum Volume
30 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 14 days | |
| Frozen | 5 days | ||
| Ambient | 24 hours |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitabilityReference Values
PROTEIN, TOTAL
<229 mg/24 hours
Reference values have not been established for patients who are younger than 18 years of age.
ELECTROPHORESIS, PROTEIN
The following fractions, if present, will be reported as mg/24 hours:
Albumin
Alpha-1-globulin
Alpha-2-globulin
Beta-globulin
Gamma-globulin
MASS-FIX M-PROTEIN ISOTYPE
M-protein Isotype MS:
No monoclonal protein detected
Flag M-protein Isotype MS:
Negative
Day(s) Performed
Monday through Friday
Report Available
4 to 6 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
84156
84166
0077U (if appropriate)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| MPQU | M-protein Quantitation, 24 HR, U | 101665-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 607970 | Albumin | 6941-9 |
| TP6 | Total Protein, 24 HR, U | 2889-4 |
| TM24 | Collection Duration | 13362-9 |
| 607971 | Alpha-1 globulin | 6794-2 |
| 607972 | Alpha-2 globulin | 6795-9 |
| VL92 | Urine Volume | 3167-4 |
| 607973 | Beta globulin | 94714-3 |
| 607974 | Gamma globulin | 94715-0 |
| 2833 | A/G Ratio | 44294-7 |
| 21446 | M spike | 42482-0 |
| 22307 | M spike | 42482-0 |
| 21447 | Impression | 32210-7 |
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Electrophoresis Protein Urine Timed
Electrophoresis Protein Urine Timed w Rflx