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HelpTest ID NBLD0051 Beta-2 Microglobulin, Random, Urine
Useful For
Evaluation of renal tubular damage
Monitoring exposure to cadmium and mercury
Specimen Type
UrineSpecimen Required
Patient Preparation: For 12 hours before specimen collection, do not take multivitamins or dietary supplements containing biotin (vitamin B7) which is commonly found in hair, skin, and nail supplements and multivitamins.
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Container/Tube: Plastic, urine tube
Specimen Volume: 1.0 mL
Collection Instructions:
1. Patient should empty bladder.
2. Have patient drink at least 0.5 liters of water.
3. Within 1 hour, collect a random urine specimen.
4. Add 1 M sodium hydroxide (NaOH) as preservative to the collection. This preservative is intended to achieve an approximate pH of between 6 and 8.
Reject Due To
| Specimen with pH <6 | Reject |
Specimen Minimum Volume
0.5mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen (preferred) | 14 days | |
| Refrigerated | 48 hours |
Day(s) Performed
Monday, Wednesday, Friday
Report Available
1 to 3 daysMethod Name
Automated Chemiluminescent Immunometric Assay
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82232
Reporting Name
Beta-2 Microglobulin, UReference Values
≤300 mcg/L
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Secondary ID
602026SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 561 | Beta 2 Microglobulins Urine |