Urea Reduction Ratio w/ Pre and Post BUN

Specimen Plasma
Container Type Green Top Tube (Pre-Dialysis)

Gold/White  Top Tube (Post-Dialysis)

Stability 7 days
Turnaround Time 1 day
Methodology Urease/GLDH
Reference Range See patient report
Transport Temp Refrigerate 2°-8°C
Instructions Use slow flow/stop pump sampling technique as described in the “Specimen Collection and Handling” section under “Post Dialysis Sampling” of this manual.  Identify post dialysis tube with barcode label GOLD/WHITE ***POST***.
Analytes BUN, Post BUN
Calculations Urea Reduction Ratio
CPT Code 84520×2