Beta-2-Microglobulin, Urine

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Category:

Turnaround Time: 2 - 4 days
CPT Code:

82232

Test Type: 10 mL Urine (random)
Stability Time:

Temperature

Period

Room temperature

7 days

Refrigerated

7 days

Frozen

14 days

Freeze/thaw cycles

Stable x3

Reference Range:

0-300 µg/L

Overview:

Evaluate renal disease; monitor certain types of malignancies and AIDS

Collection Details:

Collection Instructions:

Plastic urine container (do not acidify).

Patient should empty the bladder, then drink a large glass of water and collect a urine sample within one hour. Significant loss of ß2-microglobulin activity may occur in acidic urine (pH =6). Urine should always be collected at high diuresis and the pH adjusted to between 6 and 8 with 1 mol/L sodium hydroxide.

Refrigerate.