beta-2 microglobulin in urine

Reference interval

• 0.03-0.37 mg/day (24 hour urine)

Clinical significance

• urine values may be useful for assessment of renal clearance if urine is alkalinized to prevent degradation

Specimen

• urine 24 hour
• centrifuge, adjust to pH 7.0, analyze fresh,
• stable frozen at -20 degrees C for up to 1 year

Interferences

• urine levels increased by
  • carboplatin
  • cisplatin
  • gentamicin
  • nifedipine
  • tobramycin
  • X-ray contrast agents

More general terms

• beta-2 microglobulin in body fluid
• urine chemistry test

More specific terms

• beta-2 microglobulin in 24 hour urine

Additional terms

• beta-2-microglobulin (B2M)

Component of

• beta-2 microglobulin/creatinine in urine