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Toxoplasma gondii Antibody, IgM, CSF
|Test code||TXCM and TXCG|
|Collection Instructions||Specimen label must contain the date the sample was collected and the legible name of the person who collected the sample.|
|Container type||CSF tube or sterile collection tube|
|Amount to Collect||See preferred volume|
|Preferred volume||1 mL CSF|
|Min. Volume||0.1 mL CSF|
|Processing notes||Refrigerate. Order Quest test # 10485X|
|Turn around times||Test run Monday-Friday. Turnaround time: 2-4 days.|
|Additional information||This test is always run in conjunction with a test for IgG Antibody.
The FDA recommends that IgM assays only be performed in conjunction with an IgG Antibody test. Equivocal results may be clarified by repeating the test after an additional week or more has passed. Because IgM antibody may persist for more than a year after acute infection, IgM assay is most reliable in excluding recent primary infection, except in the earliest stages or in rare neonates who do not have an early IgM response, in whom additional testing may be needed. IgM is not usually elevated in disease due to reactivation of latent infection, such as chronic chorioretinitis or encephalitis in immunosuppressed patients with AIDS or lymphoma. The diagnosis of acute or recent Toxoplasma gondii infection should not be based on one IgM serology result. It is suggested that a positive result be confirmed by an alternate method.
|CPT coding||86778-90, 86777-90
|Last Updated||6/21/2016 12:28:48|