Methodology
Nephelometry
Synonyms
B2; Beta 2; B2M
Specimen Type
Urine, Random
Performing Lab
Quest Diagnostics Valencia
Epic ID
LAB00926
Lab Test Days
Monday-Saturday
Standard TAT
1-3 Days
Collection Information
Specimen Required
0.5-1 mL Random Urine (ONLY)
Container Type
Sterile Container
Collection Instructions
Patient shoud void bladder, then drink at least 500 mL of water.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK
Specimen Stability
Room Temp: 8 Hours; Refrigerated: 7 Days; Frozen: 1 Year
Rejection Criteria
Received room temperature
Test Volume Required
1 mL Random Urine (ONLY)
Minimum Test Volume
0.5 mL Random Urine (ONLY)
Processing Instructions
A urine sample should be collected within 1 hour and pH adjusted to pH 6-8 with 1M NaOH. Beta-2-Microglobulin is unstable in acidic urine (pH<6).
Comments
This test code is NO LONGER to be used for time urine collections. At this time, there is not an alternative test available specific for a timed urine collection. 8/17/17 SL
CPT Codes
82232
Revised
10-31-18
Initials
SL