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HelpTest Code 4010177 Dilantin (Phenytoin)
Specimen Requirements
1.0 mL serum
Container
Red top tube only (gel separator tubes are not acceptable)
Minimum Volume
65 µL serum/plasma
Stability
Separated samples stable 24 hours at room temperature, 2 days at
2-8°C
May be frozen at -20°C for up to 5 months
Analytical Time
Same day
Available stat
Sample Retention Time
7 days
Method
Turbidimetric Inhibition Immunoassay
CPT Code
80185
Performing Laboratory
Springfield Hospital Laboratory
Reject Due To
Improperly labeled sample