Test Code SIL2R Interleukin-2 Receptor Alpha soluble, Plasma
Ordering Guidance
If this test is ordered with CYPAN / Cytokine Panel, Plasma, this test will be canceled as duplicate and CYPAN performed as ordered.
If this test is ordered with CYTH1 / T-Helper Cell Type 1 Cytokine Panel, Plasma, this test will be canceled as duplicate and CYTH1 performed as ordered.
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Lavender-top (EDTA)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. Immediately after specimen collection, place tube on wet ice.
2. Centrifuge at 4° C, 1500 x g for 10 minutes.
3. Aliquot plasma into plastic vial.
4. Freeze specimen within 2 hours of collection.
Additional Information:
If a refrigerated centrifuge is not available, it is acceptable to use a room temperature centrifuge, provided the sample is kept on ice before centrifugation and is frozen immediately afterward.
Specimen Type
Plasma EDTASpecimen Minimum Volume
0.3 mL
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Plasma EDTA | Frozen | 21 days |
Reject Due To
Gross hemolysis | Reject |
Gross lipemia | Reject |
Gross icterus | Reject |
Heat-treated specimen | Reject |
Reference Values
<18 years: Not established
≥18 years: <959 pg/mL
Day(s) Performed
Thursday
Report Available
2 to 8 daysSpecimen Retention Time
14 daysPerforming Laboratory

CPT Code Information
83520