Phenytoin Level, Total

Test Code
173


Alias/See Also
Dilantin, Diphenylhydantoin


CPT Codes
80185

Preferred Specimen
1 ml serum


Instructions
Trough specimen preferred. Draw prior to dose.


Transport Container
Red Top no gel


Transport Temperature
Refrigerated


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed Specimens


Methodology
Multiple-point immuno-rate

Setup Schedule
24 hours/day


Report Available
STAT 1 hour/Routine 2 hours


Clinical Significance
0




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.