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Lab Test Dictionary

Beta-2-Microglobulin, (Random Urine ONLY) (4944)

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