Compare this test’s laboratory options
Interleukin-4, Plasma
Access Labcorp Draw1 test optionFrom $391.08
Interleukin-4, Plasma
Access Labcorp DrawCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
DetailsThis test measures interleukin-4 (IL-4), a signaling protein that helps regulate immune responses and plays a key role in allergic and inflammatory processes. IL-4 levels may be evaluated to assess immune system activity and support the investigation of allergies, asthma, autoimmune conditions, and other immune-related disorders.
What type of sample is required for this test?Plasma
Additional test information
This test measures interleukin-4 (IL-4), a signaling protein that helps regulate immune responses and plays a key role in allergic and inflammatory processes. IL-4 levels may be evaluated to assess immune system activity and support the investigation of allergies, asthma, autoimmune conditions, and other immune-related disorders.
Collection and processing
- Sample type: Plasma
- Fasting: No
- Estimated laboratory processing: Results should arrive 6 business days after the lab receives samples.
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Plasma. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should arrive 6 business days after the lab receives samples.. Timing can change after collection or if a laboratory requires additional review.
About this test
DetailsThis test measures interleukin-4 (IL-4), a signaling protein that helps regulate immune responses and plays a key role in allergic and inflammatory processes. IL-4 levels may be evaluated to assess immune system activity and support the investigation of allergies, asthma, autoimmune conditions, and other immune-related disorders.
What type of sample is required for this test?Plasma
Additional details
This test measures interleukin-4 (IL-4), a signaling protein that helps regulate immune responses and plays a key role in allergic and inflammatory processes. IL-4 levels may be evaluated to assess immune system activity and support the investigation of allergies, asthma, autoimmune conditions, and other immune-related disorders.
Highlighted health areas
- Immune System
- Autoimmune
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- IL 4, Serum