A positive result means that Borrelia antibodies were found and that you may have had or have Lyme disease. False-positive results sometimes do occur. This means the test could say you have the infection when you don’t.

What does a positive IgG Lyme test mean?

A positive result means that Borrelia antibodies were found and that you may have had or have Lyme disease. False-positive results sometimes do occur. This means the test could say you have the infection when you don’t.

How many bands do you need positive for Lyme?

In addition to testing for antibodies, it reports reactivity against a panel of 10 different proteins found on the Lyme bacteria. According to the CDC, 5 of the bands must be positive for an overall positive, reportable Western blot test result.

How do you read Lyme disease test results?

(PDF) If your Lyme disease test results show a high number of IgM antibodies, you likely have a new or recent Lyme infection. IgG antibodies, which are smaller than IgM antibodies, are produced later on in the infection and can even remain after the infection resolves.

When does Lyme IgG become positive?

You will usually test positive for Lyme disease starting at about 2 to 4 weeks after acquiring an infection.

What does a 41 KD (IgG) band result mean on a western blot?

In the Western blot test there are three bands for IgM and 10 bands for IgG. – Or you need to have 5 out of 10 for the positive IgG result. Either one confirms the diagnosis if symptoms are present. What does it mean if your 41 KD (IGG) Band result is too high? Two types of antibodies are detected in the Western blot test.

What is IgG antibody marker 41 KD?

This particular marker is called 41 KD (IGG) Band and hence is a IgG antibody marker. IgG antibodies are a sign of an older infection. In contrast, IgM antibodies reflect a relatively recent infection. IgM antibodies usually disappear after eight weeks post-exposure.

What does IgG 41 reactive mean?

Only IgG 41 reactive, but feeling some Lyme symptoms. The testing doesn’t mean you don’t have Lyme, it only means you aren’t producing enough antibodies to get a positive test. While you may not have Lyme, your symptoms are certainly lining up to point to it.

What does IgM 18 and IgG 41 mean for Lyme disease?

Bands 18 & 41 (whether in IgM or IgG) are indicative of the tail of the bacteria, which can cross react with other Spirochetal bacteria such as Relapsing Fever, Pintas and Yaws, and Syphilis. The testing doesn’t mean you don’t have Lyme, it only means you aren’t producing enough antibodies to get a positive test.