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HelpTest ID BLOD1291 Soluble Interleukin 2 Receptor
AKA
Soluble IL-2R
Specimen Type/Requirements
Lavender top (EDTA) tube - Plasma
Gold top (Serum w/gel) tube - Serum
Red top (Serum w/out gel) tube - Serum
Freeze 2 aliquots (0.5 mL plasma/serum each). Plasma/Serum must be separated from cells within 24 hours of collection and frozen immediately.
Ship overnight on dry ice to be received into Cincinnati Children's lab Monday through Friday. Specimens cannot be received on weekends or holidays.
Interfering substances: Basiliximab binds with the IL-2R in vivo. Results for patients on basiliximab reflect the unbound portion of SIL2R in the plasma sample.
Test is not affected by hemolysis or lipemia.
Specimen Volume
| Preferred Volume | 1.5 mL |
|---|---|
| Minimum Volume | 0.5 mL |
Stability/Transport
| Room Temperature | Not Acceptable | |
|---|---|---|
| Refrigerated | Not Acceptable | |
| Frozen | 6 months | Preferred for transport |
Performed Test Frequency
Monday through Friday
Report Available
2 days
Additional Information
This test is used during disease activity in autoimmune and infectious disorders as well as
in transplantation rejections.
Methodology
Chemiluminescent
Performing Lab
Cincinnati Children’s
CPT
83520
Interface Build Information
| Result Code | Result Code Description |
|---|---|
| 25371 | SIL-2R LEVEL |