A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Toxoplasma Antibody (IgM)
Test Code37207
CPT Codes
86778
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon, Wed, Fri; Report available: 1-4 days
Reference Range
AU/mL | Interpretation |
<8.00 | Negative |
8.00-9.99 | Equivocal |
>9.99 | Positive |
Clinical Significance
T. gondii IgM is typically detected within a few days of infection, peaks within a few weeks, and usually falls to undetectable levels within a few months. In some patients, however, T. gondii IgM persists for more than a year; Thus, detection of T. gondii IgM does not necessarily indicate recent or ongoing toxoplasmosis.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153