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Test Code 8132 Phenytoin

Purpose

Detecting the level of Phenytoin in the system.

 

Performing Laboratory

Copley Hospital

 

Methodology

Turbidimetric Rate

 

Specimen Requirements

Specimen Type: Blood (Plasma or Serum)

Preferred: Light-Green Top

Acceptable: Gold Top

Specimen Volume: Full Tube

Specimen Minimum Volume: 2 mL

 

Collection Instructions:

1. Label specimen with patient’s full name, date of birth,

    date & time of collection and person collecting.

2. If delay in specimen transport > 1 hour, centrifuge tube.

3. Refrigerate specimen during transport.

 

Reference Values

Therapeutic Concentration:                 10 - 20 µg / mL

Critical:                                                        > 25 µg / mL

 

Stability

Refrigerated: 2 Days

 

Day(s) Performed

Daily

Available STAT

Analytical Time: 1 Day

 

Aliases

Phenytoin

Dilantin

PTN

 

Test Classification & CPT Coding

80185