Cysticercus IgG Ab, CSF
Test Mnemonic
CYSGCS
CPT Codes
- 86682 - QTY (1)
LOINC ®
35391-2
Aliases
- Taenia Solium Antibody
- Taenia-Cysticercus, CSF
- Cysticercosis
Performing Laboratory
ARUP
FDA Category
Laboratory Developed Test
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Cerebrospinal fluid (CSF) | Clean container | Refrigerated | Transfer 1 mL CSF to a standard aliquot tube. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.3 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 month (Avoid repeated freeze/thaw cycles) |
Days Performed
Sat
Turnaround Time
2 - 9 days
Methodology
| Name | Description |
|---|---|
| Enzyme-Linked Immunosorbent Assay (ELISA) |
Reference Range
| Cysticercus IgG Ab, CSF | |||||
|---|---|---|---|---|---|
| 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
Serum will be rejected. Contaminated, heat-inactivated, hemolyzed, lipemic, or icteric specimens are unacceptable.
Clinical Info
Diagnosis of central nervous system infections can be accomplished by demonstrating the presence of intrathecally-produced specific antibody. Interpretation of results may be complicated by low antibody levels found in CSF, passive transfer of antibody from blood, and contamination via bloody taps. A negative result does not rule out infection. If clinical suspicion is high, repeat testing after 4 weeks. Cross-reaction with antibodies against Echinococcus ssp. have been reported.