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HelpTest Code DILFR Free Dilantin (includes both Total Dilantin and Free Dilantin)
Specimen Volume
2.0 mL
Preferred Specimen
Red No Gel (RED)
Specimen Handling Instructions
Non-gel red tubes only.
Separate from cells ASAP or within 2 hours of collection. Transfer 2 mL serum to an ARUP Standard Transport Tube.
Methodology
Quantitative Enzyme Multiplied Immunoassay Technique.
Routine Turn-around Time
1 - 4 days
Reference Ranges
Dilantin Total:
Therapeutic: 10.0-20.0 µg/mL
Toxic: >30 µg/mL
Dilantin Free:
Therapeutic : 1.0-2.5 µg/mL
Toxic: > 2.5 µg/mL