Phenytoin

Test/Investigation

Phenytoin

Site(s) or Laboratory offering Test/Investigation

NNUH

Units

mg/L

Comments/Precautions

Check for toxicity and compliance.

Sample type

Serum

Turnaround times (TAT) Urgent/Routine/GP or OPD

1 hour / 4 hour / by 8am next day

Reference intervals (adult unless stated)

5 – 20 mg/L

If UKAS Accredited Test indicate at which site

Y NNUH