Beta-2 Microglobulin

CERNER / EPIC MNEMONIC: B2 MICRO
POE DESCRIPTION: BETA 2 MICROGLOBULIN; B2 MICRO
DAYS PERFORMED:

Daily

TURNAROUND TIME:

8 hours

CONTAINER TYPE:

SST tube or Red top tube - 4 mL

SPECIMEN REQUIREMENTS: 4.0 mL blood (2.0 mL serum) 
REJECTION CRITERIA:

Excessive hemolysis, chylous serum

MINIMUM VOLUME: 2.0 mL blood (1.0 mL serum)
REFERENCE RANGE: Serum: <3.0 mg/L
METHODOLOGY:

Chemiluminescent

ADDITIONAL INFORMATION:

Measurement of ß2M is considered a sensitive means for diagnosing proximal tubular dysfunction.  It is reportedly the most reliable test for distinguishing upper from lower urinary tract infections, and a useful method for assessing the results of therapy and diagnosing recurrences of acute pyelonephritis using serial determinations.

LAST UPDATED:

6-6-2013

TEST SYNONYM(S):B2M, Serum; B2 Microglobulin