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22579 Echinococcus Ab, IgG, Serum (ECHNO)

Echinococcus Ab, IgG, Serum (ECHNO)
Test Code: ECHINSO
Synonyms/Keywords
Echinococcosis
Hydatiosis
Hydatic disease
Cystic echinococcal disease
Alveolar echinococcal disease
Useful For
Detection of antibodies to Echinococcus species, including E multilocularis and E granulosus.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Serum​ Serum Separator Tube (SST) Red Top Tube (RTT) 0.5 mL ​0.2 mL
Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​ ​ Refrigerated (preferred) ​30 days
​Frozen ​30 days
Rejection Criteria
Gross Hemolysis
​Gross Lipemia
Interference

​Depending on cyst location, individuals may not develop high enough antibody titers to be detectable by serologic assays, leading to false-negative results. Cysts localized to the lungs, central nervous system or spleen, or cysts that are senescent, calcified, or dead are associated with lower serologic reactivity.

False-positive results may occur in patients with other helminth infections, including with Taenia species, Schistosoma species, and Strongyloides. Careful correlation with imaging findings and exposure history is required.

This assay may not detect antibodies to other species of Echinococcus, including Echinococcus vogeli and Echinococcus oligarthrus, both fairly uncommon causes of hydatid disease in humans.

Performing Laboratory Information
Performing Location Day(s) Test Performed Report Available Methodology/Instrumentation
Mayo Clinic Laboratories​​
Tuesday and Thursday
1 to 5 days Enzyme Immunoassay (EIA)​
Reference Lab
Reference Range Information
Performing Location Reference Range


Mayo Clinic Laboratories​

Negative​
Interpretation

Negative: the absence of antibodies to Echinococcus species suggests that the individual has not been exposed to this cestode. A single negative result should not be used to rule-out infection (see Cautions).

Equivocal: consider repeat testing on a new serum sample in 1 to 2 weeks.

Positive: results suggest infection with Echinococcus. False positive results may occur in settings of infection with other helminths, or in patients with chronic immune disorders. Results should be considered alongside other clinical findings and exposure history.

Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​86682 ​1
Synonyms/Keywords
Echinococcosis
Hydatiosis
Hydatic disease
Cystic echinococcal disease
Alveolar echinococcal disease
Ordering Applications
Ordering Application Description
​Centricity ​Echinococcus, IgG & WB
​Cerner ​Echinococcus, IgG Antibody (91559)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
Serum​ Serum Separator Tube (SST) Red Top Tube (RTT) 0.5 mL ​0.2 mL
Specimen Stability Information
Specimen Type Temperature Time
Serum​ ​ ​ Refrigerated (preferred) ​30 days
​Frozen ​30 days
Rejection Criteria
Gross Hemolysis
​Gross Lipemia
Interference

​Depending on cyst location, individuals may not develop high enough antibody titers to be detectable by serologic assays, leading to false-negative results. Cysts localized to the lungs, central nervous system or spleen, or cysts that are senescent, calcified, or dead are associated with lower serologic reactivity.

False-positive results may occur in patients with other helminth infections, including with Taenia species, Schistosoma species, and Strongyloides. Careful correlation with imaging findings and exposure history is required.

This assay may not detect antibodies to other species of Echinococcus, including Echinococcus vogeli and Echinococcus oligarthrus, both fairly uncommon causes of hydatid disease in humans.

Useful For
Detection of antibodies to Echinococcus species, including E multilocularis and E granulosus.
Reference Range Information
Performing Location Reference Range


Mayo Clinic Laboratories​

Negative​
Interpretation

Negative: the absence of antibodies to Echinococcus species suggests that the individual has not been exposed to this cestode. A single negative result should not be used to rule-out infection (see Cautions).

Equivocal: consider repeat testing on a new serum sample in 1 to 2 weeks.

Positive: results suggest infection with Echinococcus. False positive results may occur in settings of infection with other helminths, or in patients with chronic immune disorders. Results should be considered alongside other clinical findings and exposure history.

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Report Available Methodology/Instrumentation
Mayo Clinic Laboratories​​
Tuesday and Thursday
1 to 5 days Enzyme Immunoassay (EIA)​
Reference Lab
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​86682 ​1
For most current information refer to the Marshfield Laboratory online reference manual.