Lyme Disease Antibody Index for CNS Infection
Test code
CPT code(s)*
Test resources
Test FAQ
Details
Methodology
Enzyme Linked Immunosorbent Immunoassay (ELISA) • Nephelometry
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 2 mL serum and 2 mL CSF collected in a sterile leak-proof container within a 24-hour period |
| Minimum volume | 1 mL serum • 1 mL CSF |
| Collection instructions | 2 mL serum and 2 mL CSF collected within a 24-hour period |
| Transport container | Transport tube and Sterile leak-proof container |
| Transport temperature | Room temperature |
| Specimen stability | Room temperature: 7 days Refrigerated: 14 days Frozen: 30 days |
| Reject criteria | CSF and serum collected greater than 24 hours apart |
Reference Range(s)
Lyme Disease Antibody Index
| ≤1.0 | Negative |
| 1.1-1.2 | Equivocal |
| ≥1.3 | Positive |
| Control Antibody Index | ≤1.0 |
| Albumin Ratio | <0.0078 |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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