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- Echocardiography: A painless test that uses sound waves to create a moving picture of your heart. The test gives information about the size and shape of your heart and how well your heart chambers and valves are working.
- Edema: Swelling caused by retention of fluid.
- EKG (Electrocardiogram): An EKG is a simple, painless test that records the heart’s electrical activity. You might have this test to show whether vasculitis is affecting your heart.
- ELISA (enzyme-linked immunosorbent assay): Very sensitive blood test for detecting the presence of autoantibodies.
- End-stage renal disease: ESRD is when the kidneys stop working well enough for you to live without dialysis or a transplant. This kind of kidney failure is permanent.
- Eosinophils: A type of white blood cell containing cytoplasmic granules that are stained easily by eosin or other acid dyes.
- Erythema: Reddish hue.
- Etiology: The cause or origin of a disease.
