Toxoplasma Antibody (IgM)

Test Code
37207


CPT Codes
86778

Preferred Specimen
1 mL serum collected in a red-top tube (no gel)


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


Methodology
Immunoassay (IA)

Setup Schedule
Set up: Mon, Wed, Fri a.m.; Report available: Next day


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



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.