WML Test Directory Update Immediate Action | April 2022

Announcement

The update for which you searched was implemented before July 2026. The was/is format for test updates is not available for this search; however, the result of the search will show a description of the change. Was/Is comparisons of changes will appear only for updates effective July 2026 onwards.

Test code PNEJ – Pneumocystis jirovecii, DFA is being temporarily inactivated due to reagent shortage.
Recommended replacement test is PNP – Pneumocystis jirovecii DNA, Qualitative Real-time PCR.

Update Summary

Effective Date	Update Type	Name
05/02/2022	Updated Test	UB2M – “Beta 2 Microglobulin, Random Urine”	Jump to update

UB2M – “Beta 2 Microglobulin, Random Urine”

Effective Date 05/02/2022

Update Type Updated Test

Test Update View Test Update ›

Notes

Updates to specimen preparation, alternate specimen, stability, methodology, reference range, and performed days.

Specimen Preparation: Send 10.0 mL of random urine in a Quest Beta-2 Microglobulin Transport Tube. Beta-2 Microglobulin in urine is unstable in acidic urine (less than pH 6). Exactly 10 mL of urine in the Quest Diagnostics Beta-2 Microglobulin Transport Tube is required to achieve the required pH of between 6 and 8. Any volume of urine above or below 10 mL will result in a pH that is outside the acceptable range.

Minimum Volume: 10.0 mL

Alternate Specimen: Collect random urine. Immediately adjust the pH between 6 -8 with 1N NaOH. Send 10.0 mL urine in a screw capped plastic urine container.

Stability: Room temperature: 5 days
Refrigerated: 15 days
Frozen: 30 days

Methodology: Immunoturbidometric

Reference Range: < or = 0.20 mg/L

Performed Days: Monday – Saturday

Test Details

Mnemonic

UB2M

Ordering Code

3719360

CPT-4 Codes(s)

82232

April 2022 WML Test Directory Update Immediate Action