Sample type: Serum
Test name: Phenytoin a.k.a. Epanutin
Condition / Indication: Therapeutic Drug Monitoring
Special precautions & notes: Albumin adjusted phenytoin reported as a better guide to biologically active phenytoin. Interpret results with caution if albumin less than 20g/L. Trough sample preferred - take immediately before oral dose.
Reference range: Therapeutic Range,Trough sample: 5.0 - 20.0 mg/L (albumin adjusted)
Container: Serum (Gold top)
Ideal volume (mL): 5 mL
Referred outside NBT for analysis? No
Discipline: Clinical Biochemistry
Section: Automated Laboratory
Turnaround time: Hospital patients 4 hours; GP patients 24 hours