CD-25; IL2R; Soluble IL2-Receptor; sCD25; IL2 Receptor
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Interleukin-2 Receptor Alpha Chain (IL-2Ra/CD25) Soluble, Serum
Test ID: IL2R
Test
Aliases/Synonyms
Method
Immunoassay
Report Includes
Interleukin 2 Receptor
Specimens
Avoid gel separator tubes; Serum
Important Note: TEST ID IL2R
Non-interfaced clients should specify the Test ID IL2R when ordering this test. Not doing so will cause processing delays while ICL ascertains which test you are requesting - please refer to the notes below.
Alternate/Similar Laboratory Services: This test is also available in plasma at Hospital for Sick Children, Toronto: Interleukin-2 (IL-2) Receptor - Soluble (CD25), Plasma
Important Note: TEST ID IL2R
Non-interfaced clients should specify the Test ID IL2R when ordering this test. Not doing so will cause processing delays while ICL ascertains which test you are requesting - please refer to the notes below.
Alternate/Similar Laboratory Services: This test is also available in plasma at Hospital for Sick Children, Toronto: Interleukin-2 (IL-2) Receptor - Soluble (CD25), Plasma
Clinical Utility
Refer to test summery at external website.
Test Location
Quest Diagnostics, California USA
Test Version
30-Mar-2023
Specimen
Specimens
Avoid gel separator tubes; Serum
Important Note: TEST ID IL2R
Non-interfaced clients should specify the Test ID IL2R when ordering this test. Not doing so will cause processing delays while ICL ascertains which test you are requesting - please refer to the notes below.
Alternate/Similar Laboratory Services: This test is also available in plasma at Hospital for Sick Children, Toronto: Interleukin-2 (IL-2) Receptor - Soluble (CD25), Plasma
Important Note: TEST ID IL2R
Non-interfaced clients should specify the Test ID IL2R when ordering this test. Not doing so will cause processing delays while ICL ascertains which test you are requesting - please refer to the notes below.
Alternate/Similar Laboratory Services: This test is also available in plasma at Hospital for Sick Children, Toronto: Interleukin-2 (IL-2) Receptor - Soluble (CD25), Plasma
Sample Volume
1.0 mL
Minimum Volume
0.3 mL
Specimen Comment
Avoid gel separator tubes.
Patient Preparation
Avoid all Biotin supplements for 48 hours prior to specimen collection.
Collection & Handling
Handling Information
Separate and freeze immediately. Store and send frozen.
Additional Information
Cytokine levels may demonstrate diurnal variation. Recommend cytokine levels be determined at the same time of day for improved longitudinal comparison.
Stability
| Ambient | Unacceptable |
|---|---|
| Refrigerated | 24 hours |
| Frozen | 30 days |
Additional Stability Information
If the specimen thaws, it is unsuitable for analysis.
Rejection Criteria
| Specimen | Not frozen |
|---|
Test Version
30-Mar-2023
Performance / Interpretation
Method
Immunoassay
Turnaround Time
12 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Interleukin 2 Receptor | pg/mL |
|
pg/mL x 0.113 | |
Test Location
Quest Diagnostics, California USA
Test Version
30-Mar-2023
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| IL2R | 38396IL-2RALPHA (CD25),SOLUBLE | pg/mL |
Test Version
30-Mar-2023