Collection Notes: Transport at least 1 mL of frozen urine that has been adjusted to a pH of 6 to 8 with 1M NaOH.
Clinical Utility: A rise of the urinary levels of ?2-microglobulin is associated with the presence of tubular damage; thus, the assay of urinary ?2-microglobulin is a suitable means for diagnosis and follow-up assessment of tubulointerstitial renal damage.
Urine (1 mL)
Ambient 8 Hours
Refrigerated 7 Days
Frozen 12 Months
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