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Lyme Disease Ab Confirmation (WB)

Item Value
Approval req'd? No
Available Stat? No
Test code LYMEWB
Test group Borrelia burgdorferi
Performed by Quest
Sendout? Yes
Method Western blot
Container type Gold top
Amount to Collect 4 mL blood
Sample type Serum
Preferred volume 2 mL serum
Min. Volume 1 mL serum
Processing notes Refrigerate sample.
Normal range Negative
Synonyms Relapsing fever; Borreliosis; Borrelia burgdorferi Ab; Borrelia burgdorferi antibody
Turn around times Test run Monday-Friday. Turnaround time: 2-4 days.
Additional information Western blot testing is automatically performed on samples that are positive on EIA for confirmation.

IgG Western Blot strips which have 5 (or more) of the 10 significant bands are considered positive for specific antibody to B. burgdorferi. IgM Western blot strips which have 2 (or more) of the 3 significant bands are considered positive for specific antibody to B. burgdorferi. The bands will be reported under a "See Separate Report". Caution must be used in supporting a diagnosis of B. burgdorferi infection when sera are Western blot IgM positive and Western blot IgG negative after the initial 4 week period from onset. Because the likelihood of a false-positive test result is high for these individuals, a positive IgM test alone is not recommended for use in determining active disease in persons with illness of longer than one month duration.
LOINC code 9587-7
Last Updated 10/2/2010 11:51:27 AM
Entry Number 138
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