How to find the test you want?

  • To find the test you are looking for, click on the first letter of the test name in the alphabet bar below
  • A full list of tests related to that letter will be displayed on the next page
  • For more information about each test, click on its name

Note: Some tests may be known by their scientific name or English abbreviation (such as CRP or ANA)

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Beta-2 Glycoprotein I Antibodies (IgG/IgM)

Beta-2 Microglobulin

Blood culture

BUN (Blood Urea Nitrogen)

15 2

Rheumatology testing is a series of blood tests used to diagnose inflammatory and autoimmune disorders affecting joints and connective tissues. These tests can identify diseases such as Rheumatoid Arthritis (RA), Lupus (SLE), Sjögren’s Syndrome, Scleroderma, and Vasculitis.

  • Pain/swelling in small joints (e.g., hands/feet), especially if symmetrical

  • Morning joint stiffness lasting >30 minutes

  • Persistent muscle weakness or pain

  • Characteristic skin rashes (e.g., butterfly rash in lupus)

  • Unexplained fevers and chronic fatigue

No. Most rheumatology tests (e.g., RF, Anti-CCP, ANA) do not require fasting. However, fasting may be needed if other tests (e.g., blood sugar/lipids) are ordered simultaneously.

  • RF (Rheumatoid Factor): A non-specific antibody positive in 70–80% of RA cases but may also be elevated in other conditions or healthy elderly individuals.

  • Anti-CCP (Anti-Cyclic Citrullinated Peptide): More specific; if positive (>95% specificity), it nearly confirms RA diagnosis.

No. Early-stage patients may test negative. Conditions like Ankylosing Spondylitis often require imaging (e.g., X-ray/MRI) for diagnosis, not standard blood tests.

Yes. Corticosteroids and immunosuppressants may lower antibody levels, causing false-negative results. Consult your doctor before testing.

No single test is definitive. Combining results (e.g., RF, Anti-CCP, CRP, ESR) with clinical symptoms improves diagnostic accuracy.

Yes. For children with joint symptoms or prolonged fever, tests like ANA, RF, and Anti-dsDNA help diagnose Juvenile Idiopathic Arthritis (JIA) or pediatric lupus.

Costs vary by test type and number ordered. Comprehensive panels are more expensive, but many insurance plans cover partial/full costs.

  • Basic tests (CRP/ESR): 24 hours

  • Specialized tests (Anti-CCP/ANA): 3–7 days
    Rare antibody tests: May take longer