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Laboratory Test Directory

Toxoplasma gondii Antibodies, IgG and IgM


Name Method Department Units
Toxoplasma gondii Ab, IgM IgG Chemiluminescence
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Toxoplasma IgG, Toxoplasma IgM

Specimen Requirements

Serum Spun

Container Type Container Size Specimen Volume

Red tube, (no anticoagulant), No Gel

3 mL 2 mL

Gold tube, (SST) with Gel

3.5 mL 2 mL

Red Tube (no anticoagulant) with Gel

3 mL 2 mL

Room temperature - 2 day(s)
Refrigerated - 2 week(s)
Frozen - 12 month(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate
  • Avoid repeated freeze/thaw cycles
  • Allow to clot completely at room temperature

Reasons for Rejection

  • Contamination
  • Heat treated specimen
  • Gross hemolysis
  • Plasma unacceptable
  • Urine


Antibodies can also be ordered separately: IgG (50770) and IgM (50557). Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent." This test does not include IgA. Toxoplasma gondii Antibody, IgA by ELISA may be ordered by itself at ARUP or Toxoplasma Antibodies (IgG, IgM, IgA) may be ordered from Quest Infectious Disease Laboratories.

CPT Code

  • 86777
  • 86778