autoimmune disorder – An illness in which the body's immune system mistakenly attacks and damages tissues of the body. There are many types of autoimmune disorders, including rheumatoid arthritis.
biologics – Drugs that target the specific components of the immune system that contribute to disease.
B cell – A type of white blood cell in the immune system that is from the bone marrow and produces antibodies.
cytokine – Chemicals involved in the inflammatory response that regulate the immune system.
deductible – A preset amount a person must pay before his or her health benefits begin. Most health plans require a minimum $200 to $500 deductible.
intravenous (IV) infusion – Delivery of a drug by insertion of a needle into a vein in the arm; the length of infusion varies for each drug.
reimbursement – In this Web site, payment for services and medicine to physicians, hospitals, or other doctors by private insurers or government programs like Medicare or Medicaid.
rheumatoid arthritis – A chronic, inflammatory autoimmune disease in which the body's protective immune system turns on the body and attacks the joints, causing pain, swelling, and deformity.
rheumatologist – A physician who pursues additional training after medical school and specializes in the diagnosis and treatment of rheumatoid arthritis and other autoimmune disorders.
T cell – A type of white blood cell in the immune system from the thymus gland which coordinates the immune system response.
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