Interleukin-1 Alpha, Fluid — Mass Concentration
Measures the amount of IL-1α in a fluid collected from the body, such as fluid around a joint or in a body cavity.
["This test measures IL-1α in a body fluid to help evaluate inflammation at the sampled site."]
Key facts at a glance
- LOINC
- 70076-5
- Short code
- Il1Alpha Fld-mCnc
- Synonyms
- Il1Alpha Fld-mCnc
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 44
- Ref high
- 147
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 84075
- SNOMED
- 27550007
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
Interleukin-1 alpha (IL-1α) is a signaling protein involved in inflammation and immune responses. This test measures its mass concentration in a body fluid, such as synovial, pleural, peritoneal, or cerebrospinal fluid.
Why might I need this test?
A clinician may order this test when inflammation or infection is suspected in a particular area of the body. The result can help support or narrow the assessment of conditions affecting the sampled fluid.
How is the test performed?
A healthcare professional collects fluid from the relevant body site using a sterile needle or another appropriate collection method. The laboratory then measures the IL-1α concentration using an immunoassay or a comparable testing method.
How do I prepare for the test?
Preparation depends on the fluid being collected and the procedure used. Follow the clinic's instructions, tell the healthcare team about medicines or bleeding disorders, and do not stop medications unless specifically advised.
Reference range
Adult: 44-147 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A higher IL-1α concentration may be associated with inflammation, infection, or an immune response at the site where the fluid was collected. Results must be interpreted with the fluid type, symptoms, examination findings, and other laboratory tests because IL-1α is not specific to one condition. An unexpected result should be discussed with the ordering clinician.
Short name
Interleukin-1 Alpha (IL-1α), Fluid
Frequently asked questions
Does this test show whether I have inflammation throughout my body?
Is fasting or special preparation required?
Can IL-1α results diagnose a specific condition by themselves?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy