Collect SST/0.5 mL serum, after 30 minutes of clotting, promptly centrifuge and send refrigerated.
Alternate sample: Red top
Collect sample within 2-4 hours after intravenous loading dose and at a steady state. For trough level collect just before the next scheduled dose.
Homogeneous Enzyme Immunoassay
Refrigerated: 1 month, Frozen: 3 months
The Emit 2000 Phenytoin Assay is intended for us in the quantitative analysis of phenytoin in human serum or plasma.
For trough level collect just before the next scheduled dose.