Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a chronic autoimmune arthritis in which the immune system attacks the lining of the joints, causing inflammation, pain, swelling, and stiffness. It often starts in the small joints of the hands and feet and can lead to progressive joint damage without early detection and monitoring. Because other conditions can look similar, rheumatoid arthritis blood tests are key to supporting diagnosis, understanding disease activity, and tracking flares over time.

Ulta Lab Tests offers RA-focused panels and individual markers—including rheumatoid factor (RF), anti-CCP antibodies, CRP, ESR, CBC, and CMP—with fast, ... See more

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The Rheumatoid Arthritis - Comprehensive Panel is the most detailed and extensive diagnostic tool available for assessing and monitoring rheumatoid arthritis (RA) and related autoimmune conditions. This panel combines a wide array of tests to evaluate the presence and severity of RA, monitor treatment effectiveness, and check for potential complications or coexisting conditions. It is designed for individuals with confirmed RA, those with symptoms suggestive of RA or other autoimmune diseases, and patients under treatment for RA to provide a complete health overview.
Blood, Serum
Phlebotomist

The Rheumatoid Arthritis - Advanced Panel is a comprehensive set of tests specifically curated for a detailed evaluation of rheumatoid arthritis (RA) and other related autoimmune conditions. This panel not only aids in diagnosing RA but also in assessing the severity of the disease, monitoring treatment efficacy, and evaluating overall health and organ function. It is designed for those who exhibit symptoms of RA or for patients under treatment to monitor disease activity and manage treatment plans effectively.
Blood, Serum
Phlebotomist

The Rheumatoid Arthritis - Basic Plus Panel is an expanded diagnostic tool designed to provide a more comprehensive assessment of rheumatoid arthritis (RA) and related conditions. By evaluating key biomarkers associated with inflammation, autoimmunity, and joint health, this panel aids in the diagnosis and monitoring of RA. It is instrumental for clinicians in identifying RA at an early stage, assessing the disease's activity level, and formulating a tailored treatment approach.
Blood, Serum
Phlebotomist

The Rheumatoid Arthritis - Basic Panel is a targeted diagnostic tool designed to detect key indicators of rheumatoid arthritis (RA) and other autoimmune conditions. This panel is particularly useful in the early diagnosis and management of rheumatoid arthritis, aiding in distinguishing it from other forms of arthritis and autoimmune diseases.
Serum
Phlebotomist

Serum, Blood
Phlebotomist


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 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.

Serum
Phlebotomist
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.

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

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.

Serum
Phlebotomist
Also Known As: RF Test, Rheumatoid Arthritis Factor 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
Phlebotomist
Also Known As: CRP Test, Inflammation Test

Most Popular

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

Most Popular

The Cyclic Citrullinated Peptide (CCP) IgG Antibody Test helps diagnose rheumatoid arthritis by detecting antibodies strongly linked to autoimmune joint disease. A positive result may indicate early or developing RA, even before symptoms appear. Doctors order this test for patients with joint pain, stiffness, or swelling. Results, often used with the rheumatoid factor (RF) test, provide valuable insight into autoimmune activity and long-term joint health management.

Serum
Phlebotomist
Also Known As: Anti-CCP, Cyclic Citrullinated Peptide IgG Antibody 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
Phlebotomist
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
Phlebotomist
Also Known As: CMP Test, Chemistry Panel Test, Chem Test, Chem 21 Test, Chem 14 Test 

The Cardiolipin IgA Antibody Test detects IgA antibodies to cardiolipin, helping assess clotting disorders, autoimmune disease, and vascular complications. High levels are often linked to antiphospholipid syndrome, pregnancy loss, or thrombotic conditions. This test provides insight into immune activity, coagulation balance, and systemic disorders influenced by antibody-mediated vascular dysfunction.

Plasma-Unspecified Vial Pour
Phlebotomist

The Cardiolipin IgG Antibody Test detects IgG antibodies to cardiolipin, often associated with autoimmune disease. Abnormal results may indicate antiphospholipid syndrome, blood clotting disorders, or pregnancy complications. This test provides insight into thrombotic risk, vascular health, systemic inflammation, and immune activity linked to autoimmune conditions and antibody-mediated disease.

Plasma-Unspecified Vial Pour
Phlebotomist

The Cardiolipin IgM Antibody Test measures IgM antibodies linked to antiphospholipid syndrome and autoimmune disorders. It helps evaluate unexplained blood clots, recurrent miscarriages, or abnormal clotting events. By detecting immune system activity against phospholipids, this test supports the assessment of vascular health, autoimmune activity, and risks related to thrombosis or systemic lupus erythematosus.

Plasma-Unspecified Vial Pour
Phlebotomist

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

Most Popular

The Cortisol AM Test measures morning cortisol levels in blood to evaluate adrenal gland function and stress response. Cortisol peaks in the morning, making this test critical for detecting adrenal insufficiency (Addison’s disease), Cushing’s syndrome, or other hormone imbalances. Doctors also use it to investigate fatigue, weight changes, or high blood pressure. This test provides important insight into endocrine health, metabolism, and long-term stress regulation.

Serum
Phlebotomist
Also Known As: Morning Cortisol Test

The Creatine Kinase (CK) Total Test measures CK enzyme levels in blood to detect muscle injury, inflammation, or stress. Elevated CK may indicate muscle disorders, heart attack, strenuous exercise, or conditions such as rhabdomyolysis, while low levels are less common. Doctors use this test to evaluate unexplained muscle pain, weakness, or chest pain and to monitor recovery. It provides insight into muscle, cardiac, and overall metabolic health.

Serum
Phlebotomist
Also Known As: CK Total Test, Creatine Phosphokinase, CPK Test

There are approximately 1.3 million sufferers of rheumatoid arthritis across the United States. Interestingly, the condition is 2.5 times more likely to impact women than men. 

While you might imagine the term arthritis with someone who is aging, it's also interesting to note that it's most common to get a rheumatoid arthritis diagnosis between the ages of 20 and 50. 

So, how do people with rheumatoid arthritis know they have it? What are the signs they experience that tell them they should be tested? Is a rheumatoid arthritis blood test the best way to find out if you suffer from this?

Read on to learn everything you need to know about people with RA and getting tested if you think you might have it.

What Is Rheumatoid Arthritis?

You might associate the term arthritis with aches, pains, and maybe some swelling. There are a few ways this type ... See more