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Test Code PTN Phenytoin

Alias

Dilantin

Collection Method

Venous Collection

Container

Light Green Lithium Heparin tube

Instructions/Special Handling

None

Preferred Specimen

Light Green (Lithium Heparin) Plasma

Acceptable Specimes

  • Serum
    • Gold SST tube
    • Red tube
  • Plasma
    • Light Green lithium heparin
    • Lavender EDTA

Units

mcg/mL

Reference Ranges

10.0 - 20.0 mcg/mL

Critical Values

>20.0 mcg/mL

Reasons for Rejection

Hemolysis N/A
Icterus N/A
Lipemia N/A
Other QNS, Contaminated, Improperly labeled, Improper specimen type

 

Specimen Stability

Ambient (15-25°C) 4 days, tube capped
Refrigerated (2-8°C) 4 days, tube capped
Frozen (-20°C) 2 months, tube capped

 

Performing Site

Boone Health Laboratory

Performance Information

Days/Times Performed Daily 24/7
Expected Turn around Time Same day
Methodology/Method Description Roche Cobas - Kinetic interaction of microparticles

 

CPT Code(s)

80185

Panel Components

N/A