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Toxo IgM (Toxoplasma gondii Antibody, IgM)


This is an immunoenzymatic assay using the immunocapture principle.

Test Utility

This test detects antibodies to the organism Toxoplasma gondii, which is a parasite commonly found in cat feces. It is often used to diagnosis acute, recent or reactive infection.

Specimen Collection and Preparation

Serum or plasma sample in the following tubes:

  • Serum separator tube (gold or tiger top)

  • EDTA plasma (lavender top) OR citrate plasma (blue top) OR Heparin plasma (green top)


  • To evaluate immune status, collect a single sample

  • To evaluate seroconversion after a recent infection, collect two samples. The second sample should be collected three weeks after the initial sample.

Specimen Storage and Stability

Store serum or plasma at the following temperatures:

  • Room temperature: 15°C to 30°C for no longer than 8 hours

  • Refrigerated: 2°C to 8°C for up to 48 hours

  • Frozen: -20°C or lower

Specimen Rejection

  • Insufficient sample volume

  • Sample not stored at proper temperature

  • Frozen whole blood

  • Severely hemolyzed samples

  • Severely lipemic specimens

  • Specimen labeled incorrectly or not labeled

Reference Pages


Monday – Saturday

Result available within 24 hours of receipt in laboratory

NOTE: Specimens are refrigerated (2-8°) for 7 days before disposal


Vibra Health Laboratory

1307- A, Allen Dr

Troy, MI 48083

(248) 846-0663

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