30560:UREA NITROGEN (BUN)
Author PeaceHealth Laboratories
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| Alias Names: |
BUN |
| Methodology: |
Enzymatic Rate |
| Edit Date: |
6/11/2010 |
| Performed: |
Daily |
| Released: |
Same day as tested |
| CPT Code: |
84520 |
| Specimen Collection Details |
| Collection: |
One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL green top tube (heparin), one 4.5 mL plasma separator tube (PST), or one 4 mL lavender top tube (EDTA). |
| Handling: |
Allow to clot, centrifuge SST or PST within 2 hours of collection and transport in original tube. Centrifuge heparin or EDTA within 2 hours of collection and separate the plasma into a plastic vial. Refrigerate. |
| Stability: |
6 days refrigerated or 30 days frozen. |
| Standard Volume: |
2 mL serum or plasma. |
| Minimum Volume: |
0.5 mL serum or plasma. |
| Transport: |
Refrigerated. |
| Rejection Criteria: |
Tubes used other than those specified. |