Hu, Yo, and Ri Antibodies with Reflex to Titers and Western Blot, CSF
Test code
CPT code(s)*
Clinical significance
Test resources
Details
Includes
Hu Antibody Screen with Reflex to Titer and Western Blot, CSF
Yo Antibody Screen with Reflex to Titer and Western Blot, CSF
Ri Antibody Screen with Reflex to Titer and Western Blot, CSF
If Hu Antibody Screen, IFA, CSF is Positive, then Hu Antibody, WB, CSF will be performed at an additional charge (CPT code(s): 84181).
If Hu Antibody, WB, CSF is Positive, then Hu Antibody Titer, CSF will be performed at an additional charge (CPT code(s): 86256).
If Yo Antibody Screen, IFA, CSF is Positive, then Yo Antibody, WB, CSF will be performed at an additional charge (CPT code(s): 84181).
If Yo Antibody, WB, CSF is Positive, then Yo Antibody, Titer, CSF will be performed at an additional charge (CPT code(s): 86256).
If Ri Antibody Screen, IFA, CSF is Positive, then Ri Antibody, WB, CSF will be performed at an additional charge (CPT codes: 84181).
If Ri Antibody, WB, CSF is Positive, then Ri Antibody, Titer, CSF will be performed at an additional charge (CPT code(s): 86256).
Methodology
Immunofluorescence Assay (IFA)
Assay category
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Specimen requirements | |
|---|---|
| Patient preparation | Overnight fasting is preferred |
| Preferred specimen(s) | 2.4 mL CSF |
| Minimum volume | 1.5 mL |
| Transport container | Sterile transport tube |
| Transport temperature | Refrigerated (cold packs) |
| Specimen stability | Room temperature: 8 hours Refrigerated: 7 days Frozen: 6 months |
| Reject criteria | Received room temperature |
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.
The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.