<= 0.89 Index Value Negative for Borrelia burgdorferi antibodies. A negative result does not exclude the possibility of Borrelia burgdorferi infection. If early Lyme disease is suspected, a second sample should be collected and tested two to four weeks later.
0.90 – 1.09 Index Value Equivocal for Borrelia burgdorferi antibodies. Reflexed for Western Blot testing.
>= 1.10 Index Value Positive for Borrelia burgdorferi antibodies. Reflexed for Western Blot testing.