Test Code DILAD Dilantin w/Dose
Specimen Type
Blood
Preferred Collection Container
GRN-PSTCollection Volume
5 mL
Minimum Collection Volume
0.6 mL in a Green microtainer
Collection Instructions
I.V.: 2-4 hours after loading dose; oral – peak: 3-9 hours after dose; trough: immediately prior to next dose. Optimal resampling after change in dosage: 48 hours.
Rejection Criteria
Inadequate labeling, improper collection.
Specimen Storage and Stability
Separate serum and refrigerate.
Turn Around Time
2 hours
Lab Department
Chemistry
Alias
Dilantin; Diphenylhydantoin; Phenytoin;
EPIC Code
LAB2552
Acceptable Collection Container
GRN-PST, SST, R-NoGel, G-NoGel
Testing Volume
0.2 mL (200 ul)
Day(s) and Time(s) Performed
Monday through Sunday, 24 hours