Phenytoin Free
Methodology
Enzyme immunoassay
Alternate Names
Free Dilantin
SoftLab Order Code
PHYF
Epic Order Name
PHENYTOIN LEVEL, FREE
Epic Order ID
LAB32
Tests Included
Quantitative determination of free phenytoin concentration
Laboratory
Raleigh
Sample Type
Plasma
Collection Container
Green No Gel (Sodium or Lithium Heparin)
Alternative Collection Container
Plain Red Top tube (no gel)
Collecting Volume
4.0 mL
Minimum Collecting Volume
2.0 mL
Storage or Stability
Refrigerated 4 days
Causes for Rejection
Collected with gel separator, QNS, Hemolysis, Lipemia, Icterus, red cells not separated within 2 hours of collection.
CPT Codes
80186