Tysabri® Antibody, Natalizumab, FOCUS #19215, EPIC: LAB6449, SOFT: XTYAB
Specimen Collection Criteria
Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top tube.
Physician Office/Drawsite Specimen Preparation
Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).
Preparation for Courier Transport
Transport: 2.0 mL serum, refrigerated (2-8°C or 36-46°F). (Min: 0.5 mL)
- Specimens not collected and processed as indicated.
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 72 hours
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 6 months
Specimen Storage in Department Prior to Disposal:
Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.
Sent to Focus Diagnostics, San Juan Capistrano , CA, forwarded to Athena Diagnostics, Worchester, MA.
Results available in 8-15 days.
Enzyme-Linked Immunosorbent Assay (ELISA).
Tysabri® (natalizumab) is a monoclonal antibody therapy used to treat multiple sclerosis (MS), a serious autoimmune disease that results in damage to the brain and spinal cord. Patients being treated with Tysabri can develop Tysabri-specific antibodies that may block the therapeutic effect of the treatment.
FOCUS #19215, EPIC: LAB6449, SOFT: XTYAB
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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills,
Grosse Pointe, Royal Oak, and Troy campuses.