Bburgdorigacsfql

What is this test?

The Cerebrospinal Fluid (CSF) Lyme Disease Antibody Test detects IgA antibodies against Borrelia burgdorferi, the bacterium that causes Lyme disease. IgA antibodies are typically found in mucosal areas and can indicate a localized immune response. When these antibodies are found in CSF, it may suggest that the Lyme disease infection has affected the central nervous system (brain and spinal cord), a condition known as neuroborreliosis.

How is the sample collected?

The sample is cerebrospinal fluid (CSF), which surrounds the brain and spinal cord. This fluid is collected through a procedure called a lumbar puncture (spinal tap). During this procedure, a healthcare provider inserts a thin needle between the bones in the lower spine to withdraw a small amount of CSF. The procedure is generally safe but may cause temporary headache or discomfort at the puncture site.

Why might I need this test?

Your doctor may order this test if you have symptoms suggesting neurological Lyme disease, especially if you: have been in an area where Lyme disease is common, have a known or suspected tick bite history, present with neurological symptoms such as facial palsy, meningitis-like symptoms, nerve pain, or coordination problems, and have other signs of Lyme disease such as the characteristic bull's-eye rash (erythema migrans).

What do the results mean?

Results are typically reported as positive or negative (presence or absence of IgA antibodies). A positive result suggests that IgA antibodies against Borrelia burgdorferi were detected in your CSF, indicating a possible infection of the central nervous system. However, results should be interpreted carefully by your healthcare provider, as false positives or false negatives can occur. Your doctor will consider your symptoms, exposure history, and other test results when making a diagnosis.