Test ID: PHYF
Phenytoin, Free, Serum
NY State Approved 
Indicates the status of NY State approval and if the test is orderable for NY State clients.
No
Useful For Suggests clinical disorders or settings where the test may be helpful
Monitoring for appropriate therapeutic concentration: free phenytoin level is the best indicator of adequate therapy in renal failure
Assessing compliance and toxicity
Method Name A short description of the method used to perform the test
Membrane Separation/Immunoassay
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
Phenytoin, Free, S
Aliases Lists additional common names for a test, as an aid in searching
Dilantin Free, Serum
Dilantin, Total and Free ORDER 9993
Free Dilantin, Serum
Free Dilantin
Free Phenytoin
Dilantin, Total and Free ORDER 9993
Free Dilantin, Serum
Free Dilantin
Free Phenytoin
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