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 |
| Report Available | 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 |


