Natalizumab Antibodies : ARUP Lab Tests

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Natalizumab Antibodies : 2005593

Mnemonic: NATAL ABS

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

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