Tube Type:
Red top (no anticoagulant)tube
Cause for Rejection:
Grossly hemolyzed, grossly icteric or collected in Plasma, whole blood, SST tubes.
Availability:
Sent to Reference Laboratory
Methodology:
INFX: Selective Reaction Monitoring LC-MS/MS
INXAB: Electrochemiluminescent Bridging Immunoassay with Acid Dissociation
Special Instructions:
Draw blood immediately before next scheduled dose (trough specimen).
For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.