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
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
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Aliases
  • Echinococcus IgG Antibody
  • Hyatid Disease
  • IgG Ab
  • Tapeworm IgG Ab