Basic Autoimmune Panel (ANA, ESR, CRP, RF)
Measures four key biomarkers to evaluate inflammation and autoimmune activity in conditions like lupus, rheumatoid arthritis, and other inflammatory disorders.
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What this test measures
This panel measures four important markers that help healthcare providers evaluate inflammation and autoimmune activity in the body. The test includes antinuclear antibodies (ANA), which are antibodies that mistakenly attack the body's own tissues and are commonly found in autoimmune conditions. It also measures erythrocyte sedimentation rate (ESR), which indicates how quickly red blood cells settle in a test tube and reflects the level of inflammation present. C-reactive protein (CRP) is another inflammation marker produced by the liver in response to tissue injury or infection.
The panel also includes rheumatoid factor (RF), an antibody that can be present in rheumatoid arthritis and other autoimmune conditions. Together, these four markers provide valuable information about inflammatory processes and autoimmune activity that may be associated with conditions such as systemic lupus erythematosus, rheumatoid arthritis, Sjögren's syndrome, and other connective tissue disorders. This screening panel is often used as an initial evaluation when autoimmune disease is suspected, though additional specific testing may be needed to confirm particular conditions.
What's included
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Individuals experiencing joint pain, stiffness, or swelling that persists for weeks or months
- Those with unexplained fatigue, fever, or muscle aches that may suggest inflammatory conditions
- People with family history of autoimmune diseases such as lupus, rheumatoid arthritis, or Sjögren's syndrome
- Patients with symptoms like skin rashes, mouth ulcers, or hair loss that could indicate systemic autoimmune activity
- Individuals with morning stiffness lasting more than 30 minutes or joint symptoms affecting multiple areas
- Those seeking to evaluate persistent inflammatory symptoms before seeing a specialist
What to expect
Preparation
No fasting is required for this test. Continue taking medications as prescribed unless instructed otherwise by your healthcare provider. It's best to inform the lab about any medications you're taking, as some drugs may affect inflammatory markers.
Sample Type
A simple blood draw from a vein in your arm, similar to routine blood work.
Collection
The blood draw typically takes just a few minutes. A healthcare professional will clean the area, insert a small needle, and collect the blood sample in tubes for testing.
Turnaround
Results are typically available within 2-3 business days and will be accessible through your secure online account.
Understanding your results
Results from this panel help identify inflammation and autoimmune activity in the body. Each test has its own reference range, and interpretation requires considering all markers together along with clinical symptoms. These markers are not unique to a specific disease and may increase with infections and malignancy in addition to autoimmune conditions. Positive results may suggest the need for additional testing or evaluation by a healthcare provider.
| Population | Reference Range | Notes |
|---|---|---|
| Adults | ANA: Negative (<1:40 titer); ESR: Men <22 mm/hr, Women <29 mm/hr; CRP: <3.0 mg/L; RF: <15 IU/mL | Reference ranges may vary slightly between laboratories |
Reference ranges shown are general guidelines. Your lab report will include the specific reference range used by the laboratory that processed your sample, which is the authoritative range for interpreting your results.
What does a “Low” result mean?
Lower or normal values for these inflammatory markers typically indicate absence of significant inflammation or autoimmune activity at the time of testing. However, many autoimmune conditions can be present even when inflammatory markers are normal. Normal results do not completely rule out autoimmune conditions, especially in early stages of disease. Clinical symptoms and additional testing may still be warranted based on individual presentation.
What does a “High” result mean?
Elevated CRP levels above 1 mg/dL may indicate inflammatory conditions, while high ESR can be affected by many factors including age, infections, and inflammatory diseases. A positive ANA can be seen in 10% or more of the normal population and in individuals with family history of autoimmune conditions. The sensitivity of RF for rheumatoid arthritis ranges from 50% to 85%, with approximately 70% of RA patients showing positive RF. Elevated results may suggest autoimmune activity but require clinical correlation for proper interpretation.
Privacy & confidentiality
All test orders are authorized and results reviewed by an independent, board-certified physician who is not the patient's personal doctor. Your autoimmune panel results are completely confidential and handled with the highest level of privacy protection. Results are <u>not sent to your personal doctor</u> unless you specifically request them to be shared. The test results are <u>not part of your medical records</u> unless you choose to provide them to your healthcare provider. Additionally, testing conducted through our service does <u>not appear on insurance statements or EOBs</u>, ensuring your privacy is maintained. Many individuals choose direct-to-consumer testing to privately evaluate their autoimmune status without involving their primary care physician initially. This confidential approach allows people to understand their inflammatory markers and make informed decisions about their health without concerns about insurance implications or unwanted medical record entries.
Frequently asked questions
Related tests
Related conditions
CPT Code: 86235, 85652, 86140, 86431
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
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Not sure if this is the right test? Contact our care team for guidance.