Collect

SST

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. (Min volume: 0.3 mL)

Unacceptable Conditions

Plasma or urine. Contaminated, heat-inactivated, or grossly hemolyzed specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Refrigerated: 7days

Cerner Orderable(s)

Toxoplasma Ab IgM

Performed

Performed at BayCare Laboratories, LLC

Ordering Recommendations

Detect presence of IgM antibodies to T. gondii. For male patients or nonpregnant female patients with equivocal or positive results, Toxoplasma gondii by PCR may also be useful if a specimen can be collected from an affected body site.

Methodology

Semi-Quantitative Chemiluminescent Immunoassay

Reported

1-2 days

Synonyms

  • parasite serology
  • T gondii Ab
  • T gondii IgG Ab
  • Toxoplasma Antibody, IgM, Serum
  • Toxoplasma IgM, ELISA, Serum

Reference Interval

Unit ValueResultInterpretation
<8.0 AU/mLNegativeAbsence of detectable Toxoplasma gondii IgM antibodies. A negative result does not always rule out acute toxoplasmosis, because the infection may be into its very early stage and the patient has not developed Toxoplasma gondii specific IgM. If exposure to Toxoplasma gondii is suspected despite a negative finding, a second sample should be collected and tested three weeks later.
8.0-9.9 AU/mLEquivocal A second sample should be collected and tested three weeks later.
> 10.0 AU/mLPositivePresence of detectable Toxoplasma gondii IgM antibodies. A specimen with a positive result should be further tested for Toxoplasma gondii .

Interpretive Data

This test is performed using the DiaSorin LIAISON. As suggested by the CDC, any indeterminate or detected Toxoplasma gondii IgM result should be retested in parallel with a specimen collected 1-3 weeks later. Further confirmation may be necessary using a different test from another reference laboratory specializing in toxoplasmosis testing where an IgM ELISA should be ordered. Caution should be exercised in the use of IgM antibody levels in prenatal screening. Any Toxoplasma gondii IgM in pregnant patients that have also been confirmed by a second reference laboratory should be evaluated by amniocentesis and PCR testing for Toxoplasma gondii.

For male and non-pregnant female patients with indeterminate or detected Toxoplasma gondii IgM results, PCR may also be useful if a specimen can be collected from an affected body site.

This test should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular and Tissue-Based Products (HCT/P).

For additional information, refer to the CDC website: www.cdc.gov/parasites/toxoplasmosis/health_professionals/index.html.

The magnitude of the measured result is not indicative of the amount of antibody present.

CPT Codes

86645
Collection

Collect

SST

Specimen Preparation

Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. (Min volume: 0.3 mL)

Unacceptable Conditions

Plasma or urine. Contaminated, heat-inactivated, or grossly hemolyzed specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Refrigerated: 7days
Ordering

Cerner Orderable(s)

Toxoplasma Ab IgM

Performed

Performed at BayCare Laboratories, LLC

Ordering Recommendations

Detect presence of IgM antibodies to T. gondii. For male patients or nonpregnant female patients with equivocal or positive results, Toxoplasma gondii by PCR may also be useful if a specimen can be collected from an affected body site.

Methodology

Semi-Quantitative Chemiluminescent Immunoassay

Reported

1-2 days

Synonyms

  • parasite serology
  • T gondii Ab
  • T gondii IgG Ab
  • Toxoplasma Antibody, IgM, Serum
  • Toxoplasma IgM, ELISA, Serum
Result Interpretation

Reference Interval

Unit ValueResultInterpretation
<8.0 AU/mLNegativeAbsence of detectable Toxoplasma gondii IgM antibodies. A negative result does not always rule out acute toxoplasmosis, because the infection may be into its very early stage and the patient has not developed Toxoplasma gondii specific IgM. If exposure to Toxoplasma gondii is suspected despite a negative finding, a second sample should be collected and tested three weeks later.
8.0-9.9 AU/mLEquivocal A second sample should be collected and tested three weeks later.
> 10.0 AU/mLPositivePresence of detectable Toxoplasma gondii IgM antibodies. A specimen with a positive result should be further tested for Toxoplasma gondii .

Interpretive Data

This test is performed using the DiaSorin LIAISON. As suggested by the CDC, any indeterminate or detected Toxoplasma gondii IgM result should be retested in parallel with a specimen collected 1-3 weeks later. Further confirmation may be necessary using a different test from another reference laboratory specializing in toxoplasmosis testing where an IgM ELISA should be ordered. Caution should be exercised in the use of IgM antibody levels in prenatal screening. Any Toxoplasma gondii IgM in pregnant patients that have also been confirmed by a second reference laboratory should be evaluated by amniocentesis and PCR testing for Toxoplasma gondii.

For male and non-pregnant female patients with indeterminate or detected Toxoplasma gondii IgM results, PCR may also be useful if a specimen can be collected from an affected body site.

This test should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular and Tissue-Based Products (HCT/P).

For additional information, refer to the CDC website: www.cdc.gov/parasites/toxoplasmosis/health_professionals/index.html.

The magnitude of the measured result is not indicative of the amount of antibody present.
Administrative

CPT Codes

86645

×
Learn More Remind Me Later Dismiss