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HelpTest ID BLOD0963 Dialysis Urea Reduction Ratio (Pre-BUN and Post-BUN)
AKA
Pre-Bun, Post-Bun, Urea Red
Specimen Type/Requirements
Light Green top (Lithium Heparin w/gel) tube - Plasma
Gold top (Serum w/gel) tube - Serum
Red top (Serum w/out gel) tube - Serum
Specimen drawn before dialysis should be labeled as Pre-BUN. Specimen drawn after dialysis should be labeled as Post-BUN.
Specimens should be centrifuged and aliquoted within 2 hours of collection.
Test may be affected by gross hemolysis, gross icterus and gross lipemia.
Specimen Volume
| Preferred Volume | 1.0 mL |
|---|---|
| Minimum Volume | 0.5 mL |
Stability/Transport
| Room Temperature | 7 days | |
|---|---|---|
| Refrigerated | 7 days | Preferred for transport |
| Frozen | 1 year |
Performed Test Frequency
Monday through Sunday
Report Available
1 - 3 days
Additional Information
Test includes a Pre-Bun and a Post-Bun for dialysis.
Methodology
Enzymatic (Urease)
Performing Lab
Sanford Laboratories Sioux Falls, Fargo, Bismarck, Bemidji
CPT
84520