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Test Code IL5P Interleukin 5, Plasma

Reporting Name

Interleukin 5, P

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Evaluation of patients with disorders known to be associated with hypereosinophilia

Method Name

Electrochemiluminescence (ECL)


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 the 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.

5. Specimens received at ambient temperature will be canceled.


Specimen Type

Plasma EDTA

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma EDTA Frozen (preferred) 21 days
  Refrigerated  24 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK
Heat-treated specimen Reject

Reference Values

≤1.0 pg/mL

Interpretation

Elevated concentrations of interleukin-5 (IL-5) may indicate an expanded Th2 (helper T cells, subset 2)-immune response, which may be associated with hypereosinophilia.

Day(s) Performed

Wednesday

Report Available

2 to 8 days

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

LOINC Code Information

Test ID Test Order Name Order LOINC Value
IL5P Interleukin 5, P 33938-2

 

Result ID Test Result Name Result LOINC Value
36519 Interleukin 5, P 33938-2