Urea Nitrogen Clearance, Urine, 24 Hour

Test Code

UNCLB

Specimen Name

Urea Nitrogen Clearance, Urine, 24 Hour

CPT Codes

  • 84545

Collect

Sterile Urine Cup and SST-Serum

Stability

Refrigerated 48 hours then Frozen after 48 hours

Volume

10 mLs Urine and 1 mL Serum

Minimum Volume

2 mLs Urine and 0.5 mLs Serum

Performed

Performed Sunday through Saturday - Reported 1-2 days

Components

Additional Information

24 hour Urine sample must include: Collection Start-DateTime, Stop-DateTime and Total Volume.

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT