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Test ID RMPU Monoclonal Protein Studies, Random, Urine


Ordering Guidance


The use of a random urine specimen is sufficient for identifying the presence or absence of monoclonal proteins, but a 24-hour specimen is preferred for quantitating and monitoring the abnormality. See SMPU / Monoclonal Protein Studies, 24 Hour, Urine.



Shipping Instructions


Send refrigerated.



Specimen Required


Supplies: Urine Container, 60 mL (T313)

Submission Container/Tube: Plastic, 60-mL urine bottle

Specimen Volume: 50 mL

Collection Instructions:

1. Collect a random urine specimen.

2. Aliquot between 30 mL and 50 mL of urine into a plastic, 60-mL urine bottle and refrigerate.


Secondary ID

616912

Useful For

Identifying monoclonal gammopathies using random urine specimens

Specimen Type

Urine

Specimen Stability Information

Specimen Type Temperature Time
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 suitability.

Reference Values

CREATININE:

≥18 years old: 16-326 mg/dL

Reference values have not been established for patients younger than 18 years.

 

PROTEIN/CREATINE RATIO:

≥18 years: <0.18 mg/mg creatinine

Reference values have not been established for patients younger than 18 years.

 

ELECTROPHORESIS, PROTEIN:

The following fractions, if present, will be reported as mg/dL:

Albumin

Alpha-1 globulin

Alpha-2 globulin

Beta globulin

Gamma globulin

No reference values apply to random urines.

 

MASSFIX 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 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

84156

82570

84166

0077U