Cysticercosis IgG Antibody, Serum (Sendout)

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General Information

Lab Name
Cysticercosis IgG Antibody, Serum (Sendout)
Lab Code
RCYSTI
Epic Ordering
Cysticercosis IgG Antibody, Serum (Sendout)
External Test Id
0055284
Description

Useful For: Detecting the presence of IgG antibodies to T. solium in serum if clinical suspicion of cysticercosis exists.

Ordering Guidance: Parallel testing is preferred, and convalescent specimens must be received within 30 days from receipt of the acute specimen.

References
Synonyms
0055284, Bladder worm, Cysticercosis Antibody ELISA, Cysticercus, Neurocysticercosis, RCYSG, Taenia solium Antibody, Taenia solium IgG Antibody, Tapeworm IgG Antibody
Components

Interpretation

Method

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Reference Range
See individual components
Ref. Range Notes

Interpretive Information:

<9 U Negative: No significant level of cysticercosis IgG antibody detected.
9-11 U Equivocal: Recommended repeat testing in 2-4 weeks with fresh sample.
>11 U Positive: IgG antibody to cysticercosis detected, which may suggest current or past infection.

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 cystercosis antibody, IgG by Western blot is recommended.

References
Guidelines

Ordering & Collection

Specimen Type
Blood
Collection

3 mL blood in GOLD SST or RED TOP tube

Handling Instructions

Outside Laboratories:

  • Centrifuge sample and transfer serum to a separate plastic vial. Refrigerate serum.
  • If sending paired samples for parallel testing, specimens must be clearly labeled as "acute" or "convalescent." Include the collection date of each sample.

Stability: Refrigerated (Preferred): 2 weeks; Frozen: 1 month; Ambient: 48 hours. Avoid repeated freeze/thaw cycles.

Reject Due To: Hemolysis, lipemia, icterus, contaminated or heat-inactivated samples.

Quantity
requested: 1 mL serum
minimum: 0.5 mL serum

Processing

Processing

Centrifuge sample and transfer serum to a separate plastic vial. Refrigerate serum.

Sendouts:

  • Order ARUP Test: 0055284.
  • Interfaced: Yes. [Interface: 602; Department: ARPR]

Stability: Refrigerated (Preferred): 2 weeks; Frozen: 1 month; Ambient: 48 hours. Avoid repeated freeze/thaw cycles.

Reject Due To: Hemolysis, lipemia, icterus, contaminated or heat-inactivated samples.

Performance

LIS Dept Code
Sendouts ARUP Lab (RF) (ARPR)
Performing Location(s)
Sendout ARUP Laboratories, Inc.
800-522-2787

500 Chipeta Way
Salt Lake City, UT 84108
Frequency
Performed: Saturday. Report Available: 1-8 days.
Available STAT?
No

Billing & Coding

CPT codes
86682
LOINC
25389-8
Interfaced Order Code
UOW5080