Beta 2 Microglobulin (Urine)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Refer to Testing Lab link

Delphic Registration Code (Alpha Code)

UB2

Test Code (Numeric Code)

7385

Laboratory Handling

Phlebotomy

Avoid first void urine in the morning. Ensure adequate hydration. Collect a random, fresh, mid-stream urine

Transport

Send the urine sample immediately to the laboratory

Registration

Give the specimen and copy form to Biochemistry

Laboratory

Biochemistry to adjust pH to 7-8 as soon as possible after collection. FREEZE the sample after pH has been adjusted. Special collection pots may be used instead (see LabPlus website)

Sample Stability

When pH is adjusted to 7-9: 5 days at 15-25°C, 14 days at 2-8°C,12 weeks at -20°C

Synonyms

Beta-2-Microglobulin (Urine)
b 2 Microglobulin (Urine)

Turnaround Time

1 day

Specimen Type

  • Urine

Specimen Requirements

Tube/Container Type:

Preferred
  • BD Urine Tube (no additive)
Preferred
  • BD Urine Tube (no additive)
  • Specimen Container
Acceptable
  • Specimen Container
Minimum Sample Volume (ml)

20

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • BD Urine Tube (no additive)
Acceptable
  • Specimen Container
Minimum Sample Volume (ml)

18

Last updated: 13/11/2026