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Toxoplasma gondii Antibody, IgG (8000100255)
Test Mnemonic:
Specimen Requirements:

Serum separator tube (SST)


Serum separator tube (SST)

Minimum Volume:

1mL of serum


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

Specimen Preparation:

 Within 2 hours of collection,centrifuge


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 and time of collection on order.

Reference Range:

Positive--antibodies to toxoplasma detected.  Negative--no detectable antibodies to toxoplasma

Turnaround Time:

Test is performed daily, Sunday through Friday


Multiplex bead immunoassay


Clinical Microbiology


Toxoplasma antibody, IgG; Toxo antibody, IgG; TOXG

Clinical Indication:

Screen  for past or recent infection with Toxoplasma gondii

Patient Preparation :

Routine venipuncture

CPT 4 Code:



A positive result indicates prior exposure. IgM testing, PCR or other specialized tests are necessary to determine acute primary infection.

Previously positive patients do not require further testing.


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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