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PLEASE NOTE: Recent changes have been made to this Test


 Recent changes for Phenytoin

Recent changes for Phenytoin
DateFieldChanged FromChanged To

Phenytoin

Alternative Names:Dilantin
Laboratory:Clinical Biochemistry
Test Code:PTN
Specimen Types:Blood
Container Types:
SST
Lithium Heparin (with Gel)
Collection & Request Instructions:

Collect Pre-dose.

Transport Instructions between Sites and/or Laboratories:Room Temperature
Assay Frequency:Daily
Additional Notes:

Therapeutic Range:  40—80 umol/L

Therapeutic Range Source: Alinity c Phenytoin Reagent kit insert, July 2018

Test performed on Abbott Alinity

Measured (Total) Phenytoin consists of "(protein) bound" and "free" (pharmaceutically active) drug. Where plasma albumin is reduced, calculated free phenytoin may be requested to provide a better indication of possible drug toxicity.