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Test Code TOXCG Toxocara Antibody, IgG, Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Useful For

Aiding in the diagnosis of Toxocara infection

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Reporting Name

Toxocara Ab, IgG, S

Specimen Type

Serum

Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 30 days
  Refrigerated  5 days

Reference Values

Negative

 

Reference values apply to all ages.

Interpretation

Positive:

IgG antibodies to Toxocara species detected, suggesting current or past infection. False-positive results may occur in patients with other helminth infections (eg, Ascaris lumbricoides, Schistosoma species, Strongyloides).

 

Equivocal:

Recommend follow-up testing in 10 to 14 days if clinically indicated.

 

Negative:

No antibodies to Toxocara species detected.

Clinical Reference

1. Smith HV. Antibody reactivity in human toxocariasis. In: Lewis JW, Maizels RM, eds. Toxocara and Toxocariasis: Clinical, Epidemiological, and Molecular Perspectives. Institute of Biology and the British Society for Parasitology; 1993:91-109

2. Liu EW, Chastain HM, Shin SH, et al. Seroprevalence of antibodies to Toxocara species in the United States and associated risk factors, 2011-2014. Clin Infect Dis. 2018;66(2):206-212

3. Woodhall DM, Fiore AE. Toxocariasis: a review for pediatricians. J Pediatric Infect Dis Soc. 2014;3(2):154-159

Day(s) Performed

Tuesday, Thursday

Report Available

1 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

86682

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TOXCG Toxocara Ab, IgG, S 40674-4

 

Result ID Test Result Name Result LOINC Value
TOXCG Toxocara Ab, IgG, S 40674-4