Specimen Requirements
Title
INFLIXIMAB (REMICADE) QUANT W/ RELFEX TO AB
Specimen Requirement
Collect 1 mL serum from red top.
For 12 hours before specimen collection do not take supplements or vitamins containing biotin (vitamin B7).
Methodology
Selective Reaction Monitoring LC/MS-MS -- Reflexes to Electrochemiluminescent Bridging Immunoassay with Acid Dissociation
Stability
Room Temp: Unacceptable, Refrigerated: 28 days, Frozen: 28 days
Reference Range
By report*
Turnaround
5-8 days
Clinical Use
In the absence of anti-infliximab antibodies, the infliximab drug level typically reflects the total infliximab concentration in serum. In the presence of anti-infliximab antibodies, the infliximab drug level typically reflects the antibody-unbound fraction of infliximab concentration in serum.
Test Code
REMIC