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 Field Name  Data Description
Test Name  Dilantin (Diphenylhydantoin, Phenytoin)
CPT Code  80185
Last Modified  4/29/2015 1:18:00 PM
Test Name  DILANTIN (3051)
Patient Preparation  
Spec. Requirements  Blood
Tube  Lt. Green or Gold
Collection Volume  3.0 mL Lt Green or 3.5 mL Gold
Storage  Ambient - 2 days, 2-8C - 1 month, -20C - 5 months (temperature range not defined).
Routine TAT  4 hours
STAT TAT  50 Minutes
Days Test Performed  Daily
Performed by BHS  All Hospitals
See Availability  All shifts
Reference Lab  N/A
Reference Lab Code  
Clinical Use  Anticonvulsant used to treat epilepsy.
Reference Range  Therapeutic Level: 10 - 20 mcg/dL
Critical Value  > 20 mcg/dL
Reference Range  
Critical Value  
Testing Sample Type  Plasma or Serum
Min Lab Testing Volume  0.5 mL (0.2 mL)
Special Handling  If sample is collected in a gelled tube, sample cannot be used for any TDM / Drug assays if not separated from the gel within 24 hours of collection.
Lab Notes  
Methodology  EIA - Enzyme Immunoassay

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