Laboratory Services
Phenytoin
Print this pageUpdated Test Information:
| Test Description |
Phenytoin
|
|
|---|---|---|
| Synonym(s) |
Dilantin
|
|
| Test ID |
PHNY
|
|
| Specimen Type |
Serum
|
|
| Alternate Specimen Type |
Red, Na‑heparin, Li‑heparin, K2‑EDTA and K3‑EDTA plasma
|
|
| Specimen Requirements |
Red Top
Aliquot Tube |
|
| Specimen Collection / Processing Instructions |
Red Top - Transfer separated serum or plasma to an aliquot tube
|
|
| Minimum Sample Volume |
1 mL
|
|
| Pediatric Min. Volume (if applicable) |
500 uL
|
|
| Stability |
4 days at 20‑25 °C
4 days at 2‑8 °C 1-2 months at ‑20 °C (± 5 °C) |
|
| Methodology |
Enzyme immunoassay
|
|
| Estimated TAT |
0-2 days
|
|
| Testing Schedule |
Monday-Saturday
|
|
| CPT Code(s) |
80185
|
|
| Reference Range |
10-20 ug/mL
|
|
| Performing Lab |
Incyte Diagnostics
|
|
| LOINC Code(s) |
3968-5
|
