ARUP's Laboratory Test Directory

Natalizumab Antibodies : 2005593

Mnemonic: NATAL ABS

Ordering Recommendation: Aids in management of individuals receiving natalizumab therapy.
Methodology: Qualitative Bridging Enzyme-Linked Immunosorbent Assay
Performed: Varies
Reported: 7-14 days
Specimen Required: Collect: Plain red. Also acceptable: Serum separator tube.

Specimen Preparation: Allow blood to clot at room temperature for 30 minutes. Separate serum from cells within 1 hour. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 1 mL)

Storage/Transport Temperature: Frozen. Also acceptable: Refrigerated

Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: 2 Weeks; Frozen: 2 Weeks

Reference Interval:
By report
CPT Code(s): 83516
Cross References: Tysabri, Natalizumab Immunogenicity Test