Lyme Western Blot

The Lyme western blot test is a blood test that checks for IgG and IgM antibodies to Lyme Disease.

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Lyme Western Blot FAQ

What is the Lyme Western Blot test?

This blood test consists of a Western Blot for Lyme Disease IgG and IgM antibodies.

Why is the Lyme Western Blot test important?

The Lyme Western Blot is a confirmatory test that confirms the presence of Lyme disease in someone who has a positive screening Lyme Disease test.

Which Lyme test should I get?

Typically, the Lyme Western Blot is only run if the screening test (the Lyme Disease Test) is positive. Some people order both the Lyme Disease Test and the Lyme Western Blot for added confirmation of their test results.

What type of specimen will I submit?

This Lyme Western Blot is a blood test.

Do I need to fast to take this test?

Fasting is not necessary.

How long does it take to get test results?

It typically takes 4 business days or less.

Accesa Labs does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider for specific health concerns.

Last updated on October 5, 2017

Lyme Western Blot for $159

Lyme Western Blot Test - More Information

This Lyme disease western blot test measures IgG and IgM blood antibody levels to Borrelia burgdorferi. Using an immunoblot methodology, this lab test is typically used to confirm the results when the Lyme disease screening test is positive.

On a Lyme western blot lab report, the IgG and IgM antibody results will be split into different KD bands with a report of reactive or non-reactive in the results column. A reactive result is considered a positive. Per CDC criteria, the Lyme disease IgG immunoblot result should show reactivity to at least five IgG proteins. The IgM immunoblot result should show reactivity to at least two IgM proteins. Regardless, anything positive should be considered in the context of clinical symptoms with the advice of your licensed medical provider.

The western blot methodology uses a process called gel electrophoresis to identify proteins using characteristics such as their length. Sometimes called a protein immunoblot, the western blot is useful as a confirmation blood test modality when initial Lyme screening tests are positive.

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