Test Directory

Clear All

Test Code

B2MSF

Test Name

Beta-2 Microglobulin, CSF

CPT Codes

82232

Expected Turnaround Time

1 day

Clinical Utility

Evaluate central nervous system involvement of certain inflammatory or B-cell proliferative diseases.

Specimen and Container Info

Preferred Specimen Type: Cerebrospinal Fluid

Preferred Collection Container: Sterile, Non-additive Container (CSF)

Desired Specimen Volume: 0.5 mL

Collection Instructions

Collect CSF specimen via lumbar puncture. Centrifuge to remove cellular material. Transfer CSF into plastic aliquot tube.

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Room Temperature

72 hours

Refrigerated

1 week

Frozen

2 weeks

Methodology

Quantitative Immunotubidimetry

Reference Intervals

0.0-2.4 mg/L

Reference Lab

ARUP Laboratories

Testing Schedule

Routine, daily