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TOXOPLASMA ANTIBODY, IgM (must be ordered together with an anti-Toxoplasma IgG antibody test)

Synonym(s):
Lab Section Category
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Specimen Required

​3 mL plain blood

Anti-Toxoplasma IgM antibody test MUST be ordered together with anti-Toxoplasma IgG antibody test.

To diagnose acute infection, send an acute serum specimen and a second convalescent serum taken 14 days later.

Indications

​Please note: 

Commencing 1 Oct 2024, the Immunology & Serology laboratory will cease to accept requests for the anti-Toxoplasma IgM antibody test without an accompanying anti-Toxoplasma IgG antibody test. Anti-Toxoplasma IgM antibody test must be ordered together with an anti-Toxoplasma IgG antibody test. 


The manufacturer has not validated the IgM kit for use on neonatal samples

Method

​Immunofluorescence

Test Results

​Test done at serum dilution of 1:10. Reported as Detected, Indeterminate or Not Detected. Acute infection will show IgM positive and ≥ 4 fold rise in IgG.

Turnaround Time

​Range 1 – 4 days

Day(s) Test Set up

​Batch tested, twice/week

Change History Notes

  • 01 Oct 2024 08:00 AM

    ​Anti-Toxoplasma IgM antibody test will not be accepted as a standalone test request.



Back: Pathology Laboratory Services

Last Updated - 13 Jun 2025