LabCorp has announced that they are currently experiencing a testing and reporting delay for this assay.
Possible reflex to RMSF, IgG, IFA
Establish the diagnosis of infection due to Rickettsia in the spotted fever group
Immediately following collection, thoroughly mix sample by gently inverting 5 times
Gold serum separator (SST) tube
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen - 14 days
Freeze/thaw cycles - stable x3
Enzyme immunoassay (EIA) with indirect fluorescent antibody (IFA) titer on positives
Negative: <1:64
Positive: 1:64
Recent/active: >1:64