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Dilantin Level, Free

Message
Performed at BUMCT


Test Code
PTNFREE


Alias/See Also
Dilantin


Preferred Specimen
Draw 2.1 - 6.0ml Green top Li - plasma
Separate and aliquot plasma - send Plasma to BUMCT
Note: Do not send in mother tube (cannot sit on gel)


Instructions
Samples must be on its own accession and then centrifuged within an hour of collection and removed from gel and cells within 4 hours of collection.  


Transport Temperature
Refrigerated


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens recieved in mother tube will be rejected, must be plasma aliquot


Setup Schedule
Daily.
If sending to BUMCP, turnaround time may be greater than 4 hours.


Clinical Significance
Phenytoin (diphenylhydantoin) has been used extensively for seizure control in patients having both grand mal epilepsy (major
motor), cortical focal seizures, and temporal lobe epilepsy. Serum level monitoring of the drug is essential in order to achieve
maximal seizure control while maintaining minimal blood levels. Because of individual variation in absorption and metabolism,
optimum levels may vary.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.