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Alphabetical Index
Toxoplasma gondii Antibody, IgM (8000100329)
Test Mnemonic:
Specimen Requirements:
Collection:

Serum separator tube (SST) or Red Top serum tube with no additive
Container:

Serum separator tube (SST) or Red Top serum tube with no additive
Minimum Volume:

3 mL of blood (1mL of serum)
Storage/Transport:

Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)
Stability:

Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)
Causes for Rejection:

Insufficient quantity, gross hemolysis, lipemia, specimen container unlabeled or labeled incorrectly, no date or time of collection on order. 
Specimen Preparation:

Within two hours of collection, centrifuge. Serum collected in a red top should be removed from the red cells if testing will be delayed. 
Methodology:

Multiplex bead immunoassay
Performed:

Clinical Microbiology
Turnaround Time:

Test is performed in batch, once per day, six days a week 
Reference Range:

Negative
CPT 4 Code:

86778
Note:

Negative - No anti-Toxoplasma gondii IgM detected. A negative IgM result may be due to delayed seroconversion and does not rule out current infection.

Equivocal - A second sample should be sent.

Positive - Indicative of a current or recent infection with Toxoplasma gondii.  False positive results may occur.   The results of the test must be taken within the context of the patient's clinical history, symptomology, and other laboratory findings.

For additional information, refer to the CDC website (https://www.cdc.gov/dpdx/toxoplasmosis/index.html) or to PAMF website (http://www.pamf.org/serology).
Synonyms:

Toxoplasma antibody, IgM, TOXOM
Patient Preparation :

Routine venipuncture
Clinical Indication:

Screen for TOXO antibodies, IgM
Effective Date: 10/24/2024
Reviewed By/Date: 0 - 01/01/1900
Approved By/Date: Williams-Bouyer, Natalie - 10/24/2024
When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.

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