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Test Code RO3 Beta-2 Microglobulin, Plasma

Specimen Type

Preferred: Plasma

Acceptable: Serum

Container

Preferred: Lithium Heparin (Mint Green or Dark Green)

Acceptable: Serum Red Top tube or Gold SST

Preferred Volume

5 mL

Offsite Collection Instructions

1. Serum and plasma tubes should be centrifuged and aliquoted within 2 hours of collection.

2. Aliquoted samples could either be room temperature at 15-25°C or refrigerated at 2-8°C prior and during transportation.

3. If above criteria are not met, specimen will be rejected.

UCMC Collection Instructions

1. Samples need to be received in the lab within 2 hours of collection at room temperature.

2. Greater than 2 hours must be refrigerated at 2-8°C.

3. If the specimen cannot be sent to the lab within 6 hours of collection, it must be spun, aliquoted and refrigerated at 2-8°C.

4. All unspun specimens greater than 6 hours will be rejected.  

5. If above criteria are not met, specimen will be rejected.

Availability

24/7

Turnaround Time

4 hours

STAT Availability

Not Available

Test Usage

To be used as an aid in the diagnosis of active rheumatoid factor arthritis and kidney disease.

Test Methodology

Immunoturbidometric

CPT Code

82232

Critical Results

None

Coverage Information

CMS has established a national coverage policy (NCD) for Medicare for this test as of November 25, 2002. Please document medical necessity. For more details click this link:

 

lcd-details.aspx

Reference Range

0.8–2.3 mg/L

Fee Code

30282232

Minimum Volume

2 mL

Test Includes

Quantitative determination of Beta-2-microglobulin in plasma