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HelpTest Code IL6DX Interleukin-6, Serum
Specimen Required
Collection Container/Tube: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial
Useful For
Evaluating patients with suspected chronic inflammatory disorders, such as rheumatoid arthritis, systemic lupus erythematosus, ankylosing spondylitis, or inflammatory bowel disease
Evaluating patients with Castleman disease
Evaluating patients with suspected systemic infection
Evaluating patients with suspected localized infection, specifically prosthetic joint infection
Assisting in identifying severe inflammatory response in patients with confirmed COVID-19 illness to aid in determining the risk of intubation with mechanical ventilation, in conjunction with clinical findings and the results of other laboratory testing
Method Name
Immunoenzymatic
Reporting Name
Interleukin-6, SSpecimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 90 days | ||
| Ambient | 24 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
< 6.4 pg/mL
Interpretation
Elevated concentrations of interleukin 6 may indicate an ongoing inflammatory response and could be consistent with a systemic infection, localized infection, or chronic inflammatory disease.
Day(s) Performed
Monday through Saturday
Report Available
1 to 3 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has received Emergency Use Authorization (EUA) by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
83529
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| IL6DX | Interleukin-6, S | 26881-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| IL6DX | Interleukin-6, S | 26881-3 |