Notes
ARUP [2005405] – Updates to specimen prep, stabiliy, reject criteria, add ref range.
Specimen Information
Specimen Preparation
| Previous: | Updated To: |
|---|---|
| Centrifuge, separate serum from cells within 2 hours of collection and send 3.0 mL serum in an | |
| amber screw capped plastic vial. | |
| Please note, this sample is no longer required to be protected from light. |
Alternate Specimen
| Previous: | Updated To: |
|---|---|
| Plasma: Lavender EDTA, green or sodium lithium heparin |
Rejection Criteria
| Previous: | Updated To: |
|---|---|
| Serum separator tube (SST) |
Stability
| Previous: | Updated To: |
|---|---|
| Room temperature: 4 hours | |
| Refrigerated: 14 days | |
| Frozen: 6 months |
Reference Range
| Previous: | Updated To: |
|---|---|
| Therapeutic Range | |
Low dose 0.50-1.00 µmol/L | |
High dose/24 hours 5.00 µmol/L or less | |
48 hours 0.50 µmol/L or less | |
72 hours 0.10 µmol/L or less |