RMPSU - Specimen: Monoclonal Protein Study, Random, Urine

Test Catalog

Test Name

Test ID: RMPSU    
Monoclonal Protein Study, Random, Urine

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

The following algorithms are available in Special Instructions:

-Laboratory Approach to the Diagnosis of Amyloidosis

-Laboratory Screening Tests for Suspected Multiple Myeloma

Specimen Type Describes the specimen type needed for testing

Urine

Advisory Information

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

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Supplies: Aliquot Tube, 5 mL (T465)

Container/Tube: Plastic, 60-mL urine bottle and plastic, 5-mL tube (T465)

Specimen Volume: 50 mL

Collection Instructions:

1. Collect a random urine specimen.

2. Aliquot specimen between containers.

3. Label specimens appropriately (60-mL urine bottle for protein electrophoresis and immunofixation and 5-mL tube for protein, total).

Additional Information:

1. Random urine, no volume is required.

2. See Urine Preservatives in Special Instructions for multiple collections.

3. Refrigerate specimen during collection and send refrigerated.

Forms

If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

General Request Form (T239) (http://www.mayomedicallaboratories.com/it-mmfiles/general-request-form.pdf)

Neurology Specialty Testing Client Test Request (T732) (http://www.mayomedicallaboratories.com/it-mmfiles/neurology-request-form.pdf)

Hematopathology/Cytogenetics Test Request Form (T726) (http://www.mayomedicallaboratories.com/it-mmfiles/hematopathology-request-form.pdf)

Urine Preservative Collection Options

Note: The addition of preservative or application of temperature controls must occur within 4 hours of completion of the collection.

 

Ambient

Yes

Refrigerated

Preferred

Frozen

Yes

6N HCl

No

50% Acetic Acid

No

Na2CO3

No

Toluene

Yes

6N HNO3

No

Boric Acid

No

Thymol

Yes

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

25 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

NA

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
UrineRefrigerated (preferred)14 days
 Frozen 5 days
 Ambient 72 hours