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Urine Beta-2-Microglobulin

Message
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. 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.


Test Code
LAB3709 B2URN


Alias/See Also
B2URN


CPT Codes
82232

Includes
@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@


Instructions
Processing Instructions (Lab use only): Add 1 M sodium hydroxide (NaOH) as preservative to the collection. This preservative is intended to achieve a pH of between approximately 6 and 8 Minimum Testing Volume: 1.0 mL Urine Transport Temperature: Frozen Stability: Ambient: N/A Refrigerated : 48 hours Frozen: 14 days Causes for Rejection: Specimen with pH <6


Report Available
4-Days


Clinical Significance
1230170154



Last Updated: May 18, 2026


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.