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B2-Microglobulin
Test CodeLAB10041
Alias/See Also
1231100438
CPT Codes
82232
Includes
B2-MICROGLOBULIN
Preferred Specimen
Red Top tube/Plain
Minimum Volume
1.0 mL serum
Instructions
CLINIC COLLECTIONS: Collect 1.0 mL of serum in Red Top/Plain. Let clot for 30 minutes. Must be spun within 2 hours after collection. Serum must be pulled off cells within 2 hours. Send to Lab in aliquot tube. RED ONLY.
Transport Temperature
Refrigerated
Specimen Stability
Serum must be off cells within 2 hours of collection. Send to LR in an aliquot tube. If testing is delayed more than 72 hours, put serum into an aliquot tube and store in the freezer for up to 60 days. Avoid more than 1 freeze/thaw cycle. Once the specimen is thawed, vortex the specimen, centrifuge the specimen to remove possible Cryoprecipitate. Transfer serum to a new, clean aliquot tube after centrifugation and prior to testing.
Storage Requirements:
Room temperature (20 to 25°C): 2 hours
Refrigerated (2 to 8°C): 3 days
Freezer (-20°C): 60 days
Storage Requirements:
Room temperature (20 to 25°C): 2 hours
Refrigerated (2 to 8°C): 3 days
Freezer (-20°C): 60 days
Methodology
Abbott Alinity
Reference Range
Males/Females:
1.00-2.64 mg/L
1.00-2.64 mg/L
Performing Laboratory
LITTLE ROCK LABORATORY
Last Updated: August 31, 2026
