|Values are valid only on day of printing.|
Lyme Disease Antibody Index:
< or = 1.0 Negative
1.1 - 1.2 Equivocal
> or = 1.3 Positive
Control Antibody Index: < or = 1.0
Albumin Ratio: <0.0078
The Lyme Disease Antibody Index is used as an aid for the diagnosis of neuroborreliosis. An increased Lyme Disease Antibody Index (>1.2), accompanied by a Control Antibody Index of less than 1.0 and an Albumin Ratio of less than 0.0078, is strong evidence for intrathecal synthesis of organism-specific antibody, and thus CNS B. burgdorferi infection. Elevation of either the control antibody index, the Albumin Ratio, or both may indicate leakage of antibody across the blood-brain barrier which may falsely elevate the Lyme Disease Antibody Index.