FREE PHENYTOIN
| Synonyms: | Free Dilantin |
| Computer Code: | (QFRDL) |
| Specimen Collection: | 7 mL blood (red top tube). |
| Minimum Volume: | 4 mL |
| Handling Instructions for Offsite Areas: | Allow to clot, centrifuge, remove serum, freeze. Min 1.0 mL serum. |
| Reference Values: | See reference laboratory report. |
| Lab Code: | Send Out |
| Requisition: | SPEC C |
| Test Frequency: | NA |
| Routine TAT: | 7 days |
| Stat TAT: | N/A |
| CPT Code(s): | 80186 |
| LCD or NCD: | |
| Methodology Used: |
See Addendum XVII |