Beta-2-Microglobulin, Urine




Test Mnemonic

URB2M

CPT Codes

  • 82232 - QTY (1)

Includes

  • Creatinine, Urine - per volume
  • Beta-2-Microglobulin, Urine
  • Beta-2-Microglobulin, ratio to CRT
  • pH, Urine

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
3 mLUrine, randomClean container FrozenPatient preparation: Void the urinary bladder, then drink a large glass of water and collect a urine specimen within 1 hour. Laboratory instructions: If pH is >8, lower pH to 6-8 with 1 M HCL. If pH <6, increase to 6-8 with 5% NaOH. Record the pH on the transport tube and ship frozen.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mL     

Stability

Environmental Condition Description
Ambient8 hours
Refrigerated48 hours
Frozen2 months (after pH has been adjusted to 6-8)

Days Performed

Sun - Sat

Turnaround Time

1 - 2 days

Methodology

Name Description
Chemiluminescence Immunoassay (CLIA) 

Reference Range

Beta-2-Microglobulin, Ur ug/L
Sex Age From Age To Type Range Range Unit
   Years99 YearsNormal0 - 300ug/L
Beta-2-MicroglobulinRatio to CRT
Sex Age From Age To Type Range Range Unit
   Years99 YearsNormal0 - 300ug/g crt

Special Info

Patient preparation: Void the urinary bladder, then drink a large glass of water and collect a urine specimen within 1 hour. Laboratory instructions: If pH is >8, lower pH to 6-8 with 1 M HCL. If pH <6, increase to 6-8 with 5% NaOH. Record the pH on the transport tube and ship to referral laboratory frozen.

Clinical Info

This test is can be useful in evaluation of renal tubular damage or to monitor exposure to mercury and cadmium.

Clinical Limitation

n/a

Clinical Reference

n/a