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HelpTest ID BLOD0963 Dialysis Urea Reduction Ratio (Pre-BUN and Post-BUN)
Synonym
Pre BUN, Post BUN, Urea Red
Specimen Type/Requirements
Light Green top (Lithium Heparin w/gel) tube - Plasma (preferred)
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.
Specimen should be centrifuged and separated within 2 hours of collection.
Test may be affected by gross hemolysis, gross icterus and gross lipemia.
Specimen Volume
Sioux Falls, Fargo, Bemidji
| Preferred Volume | 1.0 mL |
|---|---|
| Minimum Volume | 0.5 mL |
Bismarck
| Preferred Volume | 1.0 mL |
|---|---|
| Minimum Volume | 1.0 mL |
Stability/Transport
Sioux Falls, Fargo, Bemidji
| Room Temperature | 7 days | |
|---|---|---|
| Refrigerated | 7 days | Preferred for transport |
| Frozen | 1 year |
Bismarck
| Room Temperature | 24 hours | |
|---|---|---|
| Refrigerated | 7 days | Preferred for transport |
| Frozen | 2 months |
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
Sioux Falls, Fargo, Bemidji
Enzymatic (Urease)
Bismarck
Urease GLDH
Performing Lab
Sanford Laboratories Sioux Falls, Fargo, Bismarck, Bemidji
CPT
84520