Lyme disease antibody
Alternate Names : Lyme disease serology, ELISA for Lyme disease, Western blot for Lyme disease
Normal Values
Nonreactive or a very low serum titer (antibody count) is normal. This is called a negative result. If the ELISA test is negative, no other testing needs to be done most of the time. Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What do Abnormal Results Mean?
An abnormal ELISA result must be followed up with a Western blot test. Only a positive Western blot test can confirm the diagnosis of Lyme disease. For many people, the ELISA test remains positive even after they have been treated and no longer have symptoms. A positive ELISA can help confirm the diagnosis, but it isn't enough by itself. Other diseases, such as rheumatoid arthritis, can give the same results. In some patients, early treatment with antibiotics can cause the antibody test to be negative.
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