Phenytoin, Free

Last Modified: 2/2/2022 7:12:55 AM


Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 2.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions:

Should be drawn 2-4 hours after IV Dose, or just prior to next oral dose.

Minimum Volume: 1.0 mL
Transport & Storage: Temperature/Stability: 24 hours Refrigerated

24 hours on Cells
Rejection Criteria: Serum Separator Tube (SST or PST)
Reference Range: 1 - 2 mcg/ml
Critical Ranges:  
Test Comments:  
Methodology: Ultrafiltration, Immunoassay
Clinical Significance:  
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: PHENF
EPIC Test Code: LAB32
Alternate Test Names: Dilantin, Free; Free Phenytoin; Phenytoin Level, Free
Included Tests:  
CPT Coding: 80186

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