MEPHENYTOIN AND NORMEPHENYTOIN

Synonyms: Mesantoin, Nirvanol
Computer Code: (RMEP)
Specimen Collection: 4 mL blood (red or sodium heparin green top tube). No gel-barrier tubes.
Minimum Volume: 2 mL
Handling Instructions for Offsite Areas: Serum: Allow to clot, centrifuge, remove serum, refrigerate. Min 0.5 mL serum. Plasma: centrifuge, remove plasma, refrigerate. Min 0.5 mL serum.
Reference Values: See reference laboratory report.
Lab Code: Send Out
Requisition: SPEC C
Test Frequency:
Routine TAT: 14 days
Stat TAT: N/A
CPT Code(s): 80339
LCD or NCD:
Methodology Used:
See Addendum XVII