Specimen: 2 mL (1 mL min.) serum from 1 Red Top (No Additive) tube. Do not use SST gel barrier tubes. Ship refrigerated or frozen. Recommended specimen: just before the next dose is due at steady state.
Stability (Room): 8 hrs
Stability (Refrigerated): 48 hrs
Stability (Frozen): 1 week
Price: C ontact Medilab
Turnaround time (TAT): 10 – 15 days
Usage: Phenytoin is the drug of choice to treat and prevent Tonic-Clonic & Psychomotor seizures. This assay is useful for monitoring appropriate therapeutic concentration and assessing compliance for toxicity.
Disease: Therapeutic Drug Monitoring
Home Collection: Available
Pre-test Information: Recommended specimen: just before the next dose is due at steady state.