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 Systemic Lupus Erythematosus (SLE) Comprehensive Diagnostic Panel measures key autoimmune markers to aid in lupus diagnosis and monitoring. This panel includes ANA Screen with reflex, dsDNA, chromatin, Sm, RNP, Sjögren’s (SS-A, SS-B), and complement levels (C3c, C4c, CH50). Doctors order this test for patients with fatigue, joint pain, rash, or organ involvement. Results provide critical insight into immune activity, disease severity, and treatment guidance.

Also Known As: Lupus Panel with ANA Screen IFA with Reflex to Titer and Pattern, SLE Antibody Panel


The ANA Screen IFA with Reflex to Titer and Pattern Test detects antinuclear antibodies in blood to evaluate autoimmune activity. If positive, further testing identifies antibody concentration (titer) and fluorescence pattern, helping diagnose conditions like lupus, rheumatoid arthritis, or Sjögren’s syndrome. Doctors order this test to investigate symptoms such as joint pain, fatigue, rash, or swelling and to guide treatment for autoimmune and connective tissue disorders.

Also Known As: ANA Test, Antinuclear Antibody Screen Test

The ANA IFA Panel Comprehensive screens for autoimmune disorders by detecting antinuclear antibodies and specific markers including dsDNA, Sm, Sm/RNP, Scl-70, and Sjögren’s SS-A/SS-B. Doctors order this panel for patients with joint pain, rash, fatigue, or suspected lupus, scleroderma, or Sjögren’s syndrome. Results provide critical insight into autoimmune activity, helping confirm diagnosis, monitor disease progression, and guide treatment decisions.

Also Known As: Comprehensive ANA Panel



The ANCA Screen with Reflex to ANCA Titer detects antineutrophil cytoplasmic antibodies, often linked to autoimmune vasculitis such as granulomatosis with polyangiitis and microscopic polyangiitis. If the screen is positive, a titer is performed to measure antibody levels for greater diagnostic accuracy. Doctors use this test to evaluate unexplained inflammation, kidney or lung issues, and guide treatment decisions in autoimmune and systemic vasculitis care.

: Serum
Also Known As: ANCA Test, cANCA Test, pANCA Test, Serine Protease 3 Test, Acticytoplasmic Test, 3-ANCA test, PR3-ANCA Test, MPO-ANCA test

The ANCA Vasculitides Test measures antibodies that target neutrophils, helping identify autoimmune vasculitis. It aids in diagnosing conditions including granulomatosis with polyangiitis and microscopic polyangiitis. This test provides insight into systemic inflammation, kidney disease, and respiratory involvement, supporting evaluation of autoimmune disorders linked to vascular and organ damage.

: Serum



The Sm and Sm/RNP Antibodies Test detects autoantibodies associated with systemic lupus erythematosus (SLE) and mixed connective tissue disease (MCTD). Sm antibodies are highly specific for lupus, while Sm/RNP antibodies appear in MCTD and sometimes overlap syndromes. Physicians use this test to support diagnosis, evaluate autoimmune activity, and guide monitoring alongside other clinical findings and laboratory markers.

: Serum

The Sm Antibody Test measures antibodies against Smith antigens, strongly associated with systemic lupus erythematosus. It helps identify autoimmune activity, connective tissue disorders, and systemic inflammation. This test provides information about persistent symptoms including fatigue, arthritis, rash, or kidney involvement, supporting evaluation of lupus and related autoimmune disease.

: Serum

The RNP Antibody Test detects antibodies to ribonucleoprotein, an autoantigen linked to connective tissue and autoimmune diseases. Elevated levels may indicate mixed connective tissue disease, systemic lupus erythematosus, or other autoimmune disorders. This test provides valuable insight into immune system activity and is often performed alongside ANA and ENA panels for a broader evaluation of autoimmune health.

: Serum

The RPR Test with Reflex to Titer and Confirmatory Testing screens for syphilis by detecting non-treponemal antibodies. If reactive, results are automatically followed by a titer to measure antibody concentration and confirmatory treponemal testing for accuracy. Doctors use this test to diagnose active or past syphilis, monitor treatment, or screen at-risk patients. Results provide vital insight into infection status, disease stage, and overall sexual health.

: Serum
Also Known As: Syphilis Test, Rapid Plasma Reagin Test

The Syphilis Test is an RPR Test with Reflex to Titer and Confirmatory Testing that screens for antibodies to Treponema pallidum. If reactive, additional testing confirms infection and measures antibody levels to assess disease activity. Doctors use this blood test to diagnose syphilis, determine stage, and monitor treatment response. It is widely used in STD screening, prenatal care, and early detection to prevent complications and transmission.

: Serum
Also Known As: RPR Test with Reflex to Titer and Confirmatory Testing, Rapid Plasma Reagin Test

The RPR (Monitor) with Reflex to Titer Test screens for syphilis by detecting antibodies to Treponema pallidum. If positive, a reflex titer determines antibody concentration to assess disease activity and treatment response. Doctors order this test to diagnose syphilis, monitor therapy, or check reinfection. Results provide essential information for managing active infection, confirming treatment success, and guiding follow-up care.

Also Known As: Syphilis RPR Test, Rapid Plasma Reagin Test

The Complement Component C3c Test measures levels of C3c, a protein involved in the immune complement system. Abnormal results may indicate autoimmune disorders, recurrent infections, or kidney disease linked to immune activity. Doctors use this blood test to evaluate complement activation, diagnose immune-related conditions, and monitor disease progression or treatment effectiveness in patients with suspected lupus, glomerulonephritis, or other immune disorders.

: Serum
Also Known As: C3 Test, Complement C3 Test, Complement Test

The Complement Component C3c and C4c Test measures levels of two key proteins in the complement system, which supports immune defense and inflammation control. Abnormal results may indicate autoimmune disease, lupus, rheumatoid arthritis, or certain infections. Doctors use this test to investigate unexplained inflammation, monitor disease activity, and guide treatment decisions in patients with suspected immune or inflammatory disorders.

Also Known As: C3 and C4 Test, Complement C3 and C4 Test, Complement Test

The Complement Component C4c Test measures blood levels of C4c, a protein in the complement system that supports immune defense and inflammation control. Abnormal levels may indicate autoimmune disorders such as lupus, rheumatoid arthritis, or immune complex disease, as well as certain kidney conditions. Doctors use this test to evaluate complement activation, confirm diagnosis, and monitor treatment response in patients with suspected immune-related diseases.

: Serum
Also Known As: C4 Test, Complement C4 Test, Complement Test

The Complement Total CH50 Test measures overall activity of the complement system, a key part of the immune response that helps fight infections and regulate inflammation. Abnormal results may indicate autoimmune diseases such as lupus, complement deficiencies, or immune complex disorders. Doctors use this blood test to evaluate immune function, investigate recurrent infections, and monitor treatment in patients with suspected immune or autoimmune conditions.

: Serum
Also Known As: Total Complement Test, Total Complement Activity Test

The Complete Blood Count with Differential and Platelets Test is a comprehensive blood test that checks red blood cells, white blood cells, hemoglobin, hematocrit, and platelets. The differential analyzes types of white blood cells to detect infections, anemia, clotting abnormalities, immune conditions, and certain cancers. This essential test is often ordered for routine health exams, diagnosis, and monitoring treatment progress.

: Blood
Also Known As: CBC Test, CBC with Differential and Platelets Test, CBC w/Diff and Platelets Test, Full Blood Count Test, Complete Blood Count Test

The Comprehensive Metabolic Panel (CMP) Test measures 21 markers to assess metabolic health, liver and kidney function, and electrolyte balance. It includes glucose, calcium, sodium, potassium, chloride, CO2, albumin, globulin, A/G ratio, total protein, bilirubin, ALP, AST, ALT, BUN, creatinine, BUN/creatinine ratio, and eGFR. The CMP helps detect diabetes, liver or kidney disease, and supports routine screening and chronic condition monitoring.

: Serum
Also Known As: CMP Test, Chemistry Panel Test, Chem Test, Chem 21 Test, Chem 14 Test 

The Urinalysis Complete Test evaluates urine for physical, chemical, and microscopic properties to assess kidney health, urinary tract infections, diabetes, and metabolic disorders. It measures appearance, concentration, pH, protein, glucose, ketones, blood, bilirubin, nitrites, leukocyte esterase, and microscopic cells or crystals. Doctors use this test in routine exams, to diagnose urinary symptoms, and to monitor chronic kidney or metabolic disease.

: Random
Also Known As: Urine Analysis Test, UA Test, Complete Urinalysis Test

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The Sed Rate Test, also called the ESR Test, measures how quickly red blood cells settle in a sample of blood. A faster rate may signal inflammation caused by infections, autoimmune diseases, arthritis, or other chronic conditions. Doctors use this test to investigate unexplained fever, joint pain, or muscle aches, and to monitor inflammatory disorders such as lupus or rheumatoid arthritis. The Sed Rate Test provides important insight into overall inflammatory activity.

: Blood
Also Known As: Erythrocyte Sedimentation Rate Test, ESR Test, Sedimentation Rate Test, Westergren Sedimentation Rate Test

The C-Reactive Protein (CRP) Test measures CRP levels in blood to detect inflammation in the body. Elevated CRP may indicate infections, autoimmune disorders, or chronic diseases such as arthritis, cardiovascular disease, or inflammatory bowel disease. Doctors use this test to assess acute illness, monitor treatment response, and evaluate risk for heart disease. The CRP test provides key insight into inflammation, immune health, and overall wellness.

: Serum
Also Known As: CRP Test, Inflammation Test

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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