Oligoclonal Bands (IgG), CSF and IgG Synthesis Rate/Index, CSF
Isoelectric Focusing (IFE) • Nephelometry
MS
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 3 mL CSF and 2 mL serum |
| Minimum volume | 1.5 mL CSF • 1 mL serum |
| Collection instructions | Please see the individual tests for specific specimen requirements and stabilities. Both CSF & serum are required specimens. It is preferred that the collection date and time be the same for both; however, it is acceptable for them to be drawn within 48 hours of each other. If no serum is supplied, the client will be contacted to confirm the order. CSF collection tube #4 is preferred. Submitting 4th lumbar puncture collection tube minimizes blood contamination. Transport temperature: Refrigerate CSF specimens at 2-8° C in sterile plastic CSF vial(s) and send refrigerated (cold packs) to the laboratory or freeze CSF specimens at -20° C and send frozen samples to the laboratory on dry ice. |
| Transport container | CSF: Sterile plastic CSF vial Serum: Transport tube |
| Transport temperature | Refrigerated (cold packs) |
| Specimen stability | Room temperature: 8 hours Refrigerated: 7 days Frozen: 30 days |
| Reject criteria | Hemolysis • Received room temperature • Xanthochromia • RBCs • Hemolysis in CSF |
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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