Cysticercus IgG Ab, Serum




Test Mnemonic

CYSGBL

CPT Codes

  • 86682 - QTY (1)

LOINC ®

25389-8

Aliases

  • Cysticercosis
  • Taenia Solium Antibody, Serum
  • Taenia-Cysticercus, Serum

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) RefrigeratedLabel specimen as acute or convalescent.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.1 mL     

Stability

Environmental Condition Description
RefrigeratedAfter separation from cells: 2 weeks
FrozenAfter separation from cells: 1 month (Avoid repeated freeze/thaw cycles)
AmbientAfter separation from cells: 48 hours

Days Performed

Sat

Turnaround Time

2 - 9 days

Methodology

Name Description
Enzyme-Linked Immunosorbent Assay (ELISA) 

Reference Range

Cysticercus IgG Ab, Serum
Sex Age From Age To Type Range Range Unit
       < 9 U: Negative - No significant level of cysticercosis IgG antibody detected. 
       9 - 11 U: Equivocal - Recommend repeat testing in 2-4 weeks with fresh sample. 
       > 11 U: Positive - IgG antibodies to cysticercosis detected, which may suggest current or past infection. 

Special Info

Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Label specimens plainly as 'acute' or 'convalescent.' Cerebrospinal fluid (CSF) is unacceptable. Contaminated, heat-inactivated, hemolyzed, icteric, or lipemic specimens will be rejected. This test is New York DOH approved.

Clinical Info

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. Patients with collagen vascular diseases, hepatic cirrhosis, schistosomiasis, and other parasitic infections can produce false positive results. There is a strong cross-reaction between cysticercosis and echinococcosis positive sera. Confirmation of positive ELISA results by the cysticercous antibody, IgG by Western Blot is recommended.