Lupus (Systemic Lupus Erythematosus or SLE)

The lupus blood test can provide an accurate reading of the presence of antinuclear antibodies. 97% of people with lupus will test positive for the ANA that connects to the cell's nucleus or command center and damages or destroys the cells.  

Learn about your health today and order your labs directly from Ulta Lab Tests to screen, diagnose, and monitor for Lupus (Systemic Lupus Erythematosus) (SLE). 

Below the list of tests is a guide that explains and answers your questions on what you need to know about SLE tests, along with information on Systemic Lupus Erythematosus, signs, symptoms, and diagnosis.

 

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The Rheumatoid Factor (RF) Test measures RF antibodies in blood to help diagnose rheumatoid arthritis and other autoimmune conditions. High RF levels may indicate rheumatoid arthritis, Sjögren’s syndrome, or other connective tissue diseases, though they can also appear in some infections. Doctors order this test to investigate joint pain, stiffness, or swelling. Results provide important insight into autoimmune activity, joint health, and inflammatory disease management.

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Also Known As: RF Test, Rheumatoid Arthritis Factor Test

The Rheumatoid Factor IgA IgG IgM Antibodies Test measures multiple rheumatoid factor classes to aid in diagnosing rheumatoid arthritis and related autoimmune diseases. Elevated levels may suggest joint inflammation, Sjögren’s syndrome, lupus, or chronic infections. Doctors use this comprehensive test to confirm autoimmune involvement, investigate persistent pain or stiffness, and guide treatment planning by assessing disease activity across antibody types.

Also Known As: RF Antibodies Test, Rheumatoid Arthritis Factor Antibodies Test

The Rheumatoid Factor IgA Antibody Test measures IgA-class rheumatoid factor, an autoantibody linked to rheumatoid arthritis and other autoimmune diseases. Elevated levels may indicate joint inflammation, Sjögren’s syndrome, or chronic infections. Doctors use this blood test alongside other markers to confirm diagnosis, assess disease activity, and guide treatment decisions for patients with suspected autoimmune or inflammatory disorders.

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Also Known As: RF IgA Test, Rheumatoid Arthritis Factor IgA Antibody Test

The Rheumatoid Factor IgG Antibody Test measures IgG-class rheumatoid factor, an autoantibody often linked to rheumatoid arthritis and autoimmune diseases. Elevated levels may indicate joint inflammation, Sjögren’s syndrome, or chronic infection. Doctors use this test with other markers to confirm diagnosis, assess autoimmune activity, and guide treatment for patients with persistent joint pain, swelling, or suspected inflammatory disorders.

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Also Known As: RF IgG Test, Rheumatoid Arthritis Factor IgG Antibody Test

The Ribosomal P Antibody Test detects autoantibodies targeting ribosomal P proteins, which are strongly associated with systemic lupus erythematosus (SLE). These antibodies may indicate neuropsychiatric lupus, lupus nephritis, or other severe complications. By identifying ribosomal P autoantibodies, the test supports evaluation of autoimmune activity, disease progression, and differential diagnosis in lupus-related disorders.

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The Sjögren’s SS-A and SS-B Antibodies Test detects autoantibodies linked to Sjögren’s syndrome, an autoimmune disorder affecting tear and saliva glands. High levels are also associated with lupus and other connective tissue diseases. Doctors order this test for patients with dry eyes, dry mouth, joint pain, or fatigue. Results help confirm diagnosis, distinguish autoimmune conditions, and guide long-term management and treatment planning.

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Also Known As: Sjögren’s Antibodies Test

The Sjögren's SS-A Antibody Test detects SS-A (Ro) antibodies often linked to Sjögren’s syndrome, lupus, and other autoimmune disorders. These antibodies are associated with dry eyes, dry mouth, joint pain, and systemic inflammation. By measuring SS-A levels, the test supports evaluation of autoimmune activity, connective tissue disease, and overall immune system health in patients with persistent symptoms.

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The Sjögren's SS-B Antibody Test measures antibodies targeting the SS-B/La antigen, aiding diagnosis of Sjögren’s syndrome and differentiating it from other autoimmune conditions. Detected most often with SS-A/Ro antibodies, SS-B positivity can guide clinicians in assessing disease activity, organ involvement, and systemic features. This test supports evaluation of patients with chronic dryness, fatigue, or suspected connective tissue disease.

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The Comprehensive Sjögren’s Syndrome Diagnostic Panel evaluates key autoimmune markers including ANA with reflex to titer, SS-A and SS-B antibodies, rheumatoid factor, thyroid peroxidase antibody, and mitochondrial antibody with reflex. This blood test helps diagnose Sjögren’s syndrome, an autoimmune disease affecting tear and saliva glands, while also detecting related autoimmune or connective tissue disorders to guide treatment and patient care.

Also Known As: Sjögren's Syndrome Diagnostic Panel Comprehensive

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 A Urinalysis Screen test is a common diagnostic tool used in healthcare to assess and monitor various disorders by analyzing a patient's urine. This test encompasses a range of examinations including physical, chemical, and microscopic aspects of urine. It's a non-invasive, quick, and often revealing test that can provide significant insights into a person's health.
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What is Lupus (SLE)?

Lupus, also known by the formal name Systemic lupus erythematosus (SLE), is a chronic (long-term) autoimmune disorder where the body’s own immune system attacks healthy tissue. This causes inflammation, swelling, and pain in the body, most commonly in joints, skin, and organs. 

According to the National Resource Center on Lupus and the Lupus Foundation of America, more than 16,000 new cases of Lupus are confirmed each year in the United States, with an estimated 1.5 million Americans living with Lupus today. Many folks have heard about Lupus from celebrities that have the disease, such as singers Seal, Selena Gomez, and Paula Abdul. 

One of the methods used to confirm a Lupus diagnosis is to perform lab tests of the patient’s blood. These tests will screen for the presence of antibodies, specifically anti-nuclear antibodies (ANA), and other components of the blood to identify if the immune system is working abnormally. 

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