Lab Test

Schistosoma Antibody, IgG

Test Codes

Mayo: BILHA, EPIC: LAB6330, Beaker: XSHIS

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top tube.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 1.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Rejection Criteria

  • Grossly hemolyzed specimens.
  • Lipemic specimens.
  • Specimens not collected and processed as indicated.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 1.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Unacceptable
Refrigerated (2-8°C or 36-46°F): 1 month
Frozen (-20°C/-4°F or below): 1 month

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Clinic Laboratories in Rochester, MN.

Performed

Tuesday, Thursday.
Results available in 2-6 days.

Reference Range

By report.

Test Methodology

Qualitative Enzyme Immunoassay.

Interpretation

This assay is highly specific (99%) and sensitive (96%) for detection of infection caused by S. mansoni. Although the assay is also highly specific for infections caused by other Schistosoma species (S. japonicum, S. haematobium, S. mekongi), its sensitivity for these infections is lower (55%). Antibody levels do not correlate with the intensity of infection.

Clinical Utility

This assay aids in the diagnosis of schistosomiasis.

CPT Codes

86682

Contacts

Last Updated

4/10/2021

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