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Test Code DILAD Dilantin w/Dose

Specimen Type

Blood

Preferred Collection Container

GRN-PST

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.

Collection Volume

5 mL

Minimum Collection Volume

0.6 mL in a Green microtainer

Testing Volume

0.2 mL (200 ul)

Rejection Criteria

Inadequate labeling, improper collection.

Specimen Storage and Stability

Separate serum and refrigerate.

Day(s) and Time(s) Performed

Monday through Sunday, 24 hours

Alias

Dilantin; Diphenylhydantoin; Phenytoin;

EPIC Code

LAB2552

Acceptable Collection Container

GRN-PST, SST, R-NoGel, G-NoGel

Turn Around Time

2 hours

Lab Department

Chemistry