2007220
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Echinococcus Antibody, IgG

ECHINO IGG
Example Reports
Negative
Positive

Ordering Recommendation

Adjunct to other diagnostic tests (eg, imaging) for echinococcosis. Patient's travel history is necessary to aid in test interpretation.

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)

Performed

Mon, Thu

Reported

1-5 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
Collect

Serum separator tube (SST) or plain red.

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP standard transport tube. (Min: 0.15 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens. Mark specimens plainly as acute or convalescent.

Storage/Transport Temperature

Preferred transport temp: Refrigerated. Also acceptable: Frozen

Unacceptable Conditions

Contaminated, heat-inactivated, grossly hemolyzed, or severely lipemic specimens.

Remarks
Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 month (avoid repeated freeze/thaw cycles)

Reference Interval

Test Number
 Components
 Reference Interval
  Echinococcus Antibody IgG 8 U or less

Interpretive Data

Patients with collagen vascular diseases, hepatic cirrhosis, schistosomiasis, and other parasitic infections can produce false-positive results. There is a strong cross-reaction between echinococcosis- and cysticercosis-positive sera.

Seroconversion between acute and convalescent sera is considered strong evidence of recent infection. The best evidence for infection is a significant change on two appropriately timed specimens where both tests are done in the same laboratory at the same time.


Component
Interpretation
Echinococcus Antibody IgG 0-8 U........................Negative: No significant level of Echinococcus IgG antibodies detected.
9-11 U......................Equivocal: Recommend repeat testing in 2-4 weeks with fresh sample.
12 U or greater.........Positive: IgG antibodies to Echinococcus detected, indicating current or past infection.

Compliance Category

FDA

Note

Hotline History

View Hotline History

 

Hotline History

Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
05/01/2023
X
X
X
X
X
N/A

CPT Codes

86682

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Components

Component Test Code* Component Chart Name LOINC
2007221 Echinococcus Antibody IgG 9656-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Echinococcosis
  • Hydatic disease
  • Hydatiosis
  • Tapeworm
Echinococcus Antibody, IgG