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HelpPhenytoin Level Total
Additional Codes
LAB31
Performing Laboratory
MBMC Main Laboratory
Methodology
Kinetic Interaction of Microparticles in a Solution (KIMS)
Specimen Requirements
Specimen Type: Plasma
Container/Tube: Mint-green top (lithium heparin
gel)
Specimen Volume: Full tube
Collection Instructions: Trough levels should be
drawn one half hour prior to dose. Peak level should be drawn
approximately 4 hours after the dose.
Specimen Transport Temperature
Ambient
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: within 4 hours
Reference Values
10.0-20.0 mcg/mL
Critical value (automatic call-back): >30 mcg/mL
Test Classification and CPT Coding
Test Classification:This test has been cleared
or approved by the U.S. Food and Drug Administration and is used
per manufacturer’s instructions.
CPT Code:
80185
Stability
4 days Refrigerated