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tOXOPLASMA GONDII ANTIBODY, IGG: (088-5009)
Clinical Indication:

 Screen to test for past or current infection with Toxoplasma gondii
Test Mnemonic:

 TOXG
Methodology:

Multiplex bead immunoassay
Performed:

 Clinical Microbiology
Turnaround Time:

 Test is performed daily, Monday through Friday
Specimen Requirements: Patient Preparation: Routine venipuncture

Collect: SST (serum separator tube)

Specimen Preparation: Within 2 hours of collection, centrifuge

Storage/Transport: Room temperature. Refrigerate if delay in transport

Stability: 7 days, refrigerated; indefinitely, frozen

Causes for Rejection: Insufficient quantity, gross hemolysis, lipemia. Specimen container unlabeled or labeled incorrectly. No date and time of collection on requisition form.
Clinical Information:

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

Negative
Note: Previously positive patients do not require further testing.

If the patient has no detectable antibody, it is recommended to wait two weeks before testing again.

CPT 4 Code:

 86777
Review 2/13/2013 by Theresa Friloux

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-9 code or its verbal equivalent.

 

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