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Test ID BLOD1291 Interleukin 2 Receptor Alpha Soluble, Plasma


Ordering Guidance


If this test is ordered with TH1CP / T-Helper Cell Type 1 Cytokine Panel, Plasma or CYTOP / Cytokine Panel, Plasma, this test will be canceled as duplicate and TH1CP or CYTOP 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 Plasma

Collection Instructions:

1. Immediately after specimen collection, place the tube on wet ice.

2. Within 2 hours of collection, centrifuge at 4° C, 1500 x g for 10 minutes, and aliquot plasma into a plastic vial.

3. Freeze immediately.

Additional Information:

1. Plasma for this test cannot be shared with other tests. Submit specimen for this test in its own vial.

2. This test cannot be added onto a previously collected specimen.

3. 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.


Secondary ID

624125

Useful For

Measuring the concentration of soluble interleukin 2 receptor alpha (sIL-2Ra) in plasma

 

Aids in the diagnosis, evaluation and monitoring of patients with hemophagocytic lymphohistiocytosis, macrophage activation syndrome, sarcoidosis, and lymphoid malignancies

Method Name

Immunoassay

Reporting Name

IL-2 Receptor Alpha Soluble, P

Specimen Type

Plasma EDTA

Specimen Minimum Volume

Plasma: 0.3 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma EDTA Frozen 14 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: ≤1929 pg/mL

Day(s) Performed

Thursday

Report Available

2 to 8 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

83520