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HelpTest Code B/C Ratio BUN/CREA Ratio
Performing Laboratory
| Beckley Cancer Center Laboratory | 304-461-2222 |
Specimen Requirements
Plasma- Mint Green, Dark Green Lithium Heparin or Serum- SST gold top, red top
Allow SST or red top to completely clot
Spin and physically separate plasma/serum from contact with cells as soon as possible
4 mL of plasma/serum (minimum 2 mL)
Specimen Rejection
- Improperly labeled, collected, stored, and transported
- Quantity not sufficient
- Hemolyzed
Storage and Stability
Refrigerate at 2-8oC up to 1 week
Methodology
Calculated Test
Days Test Set Up and Turnaround
Monday-Friday