Toxoplasma Antibody, IgM
| Label Mnemonic: | TOXOM |
| Epic code: | LAB8776 |
| Order form: | Laboratory Requisition |
| Supply order: | Supply Order Form |
| Billing: | Billing Policies |
| CPT code: | 86778 |
Specimen(s):
Plasma
Collection Medium:
 |
| Plasma Separator Tube 4.5 mL |
Minimum:
3.0 mL whole blood from PST tube or TWO Microtainer devices
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Reference Range:
Negative
Interpretive Data:
Negative - Toxoplasma IgM antibodies were not detected. False
negatives can occur early in infection or in immunocompromised
patients.
Equivocal - Equivocal results: Toxoplasma IgM status not determined. If clinically indicated, obtain an additional specimen within 2-3 weeks.
Positive - Toxoplasma IgM antibodies detected which may indicate a current or recent infection. False positive results can occur. The results of the test must be taken within the context of the patient's clinical history, symptomology, and other laboratory findings.
Equivocal - Equivocal results: Toxoplasma IgM status not determined. If clinically indicated, obtain an additional specimen within 2-3 weeks.
Positive - Toxoplasma IgM antibodies detected which may indicate a current or recent infection. False positive results can occur. The results of the test must be taken within the context of the patient's clinical history, symptomology, and other laboratory findings.
Comments:
The results of this test should be considered in conjunction with
other laboratory test results as well as the clinical presentation of
the patient. Samples collected early in the course of the infection
may not have detectable levels of toxoplasma IgM. A non-reactive IgM
result may be due to delayed seroconversion and does not rule out
current infection. In immunocompromised patients, the ability to
produce an IgM response may be impaired, and specific IgM may be
falsely negative during an active infection. False positive results
may occur.
The results of this test should be taken within the context of the patient's clinical history, symptomatology, and other laboratory findings. This testing is not intended for use and screening blood or plasma donors. Performance characteristics have not been established for cord blood testing and neonates or for body fluids other than serum or plasma. Contaminated, icteric, lipemic, hemolyzed, or heat‑inactivated sera may cause erroneous results and should be avoided. Immune complexes or other immunoglobulin aggregates present in patient samples may cause increased non-specific findings and produce false positive results.
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The results of this test should be taken within the context of the patient's clinical history, symptomatology, and other laboratory findings. This testing is not intended for use and screening blood or plasma donors. Performance characteristics have not been established for cord blood testing and neonates or for body fluids other than serum or plasma. Contaminated, icteric, lipemic, hemolyzed, or heat‑inactivated sera may cause erroneous results and should be avoided. Immune complexes or other immunoglobulin aggregates present in patient samples may cause increased non-specific findings and produce false positive results.
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Methodology:
Multiplex Flow Immunoassay
Sample
Processing:
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Sample
Storage:
Refrigerate.
Transport
Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
CPT Code:
86778