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Echinococcus Antibody, IgG
2007220
Ordering Recommendation
Mnemonic
ECHINO IGG
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Mon, Thu
Reported
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Serum separator tube (SST).  
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
Refrigerated.  
Unacceptable Conditions
Contaminated or severely lipemic specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)  
Reference Interval
0.00-0.89 IV: Negative - No significant level of Echinococcus IgG antibody detected.
0.90-1.09 IV: Equivocal - Questionable presence of Echinococcus IgG antibody detected.  Repeat testing in 10-14 days may be helpful.
1.10 IV or greater: Positive - Presence of IgG antibody to Echinococcus detected, suggestive of current or past infection.
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.


Note
CPT Code(s)
86682
Components
Component Test Code*Component Chart NameLOINC
2007221Echinococcus Antibody IgG9656-0
* 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
  • Echinococcus IgG Antibody
  • Hyatid Disease
  • IgG Ab
  • Tapeworm IgG Ab