Specimen:
Collect
- One Red Top
Also Acceptable:
- One Gray Top
- One Green Top (Li Heparin)
- One Green Top (Na Heparin)
- One Lavender (EDTA)
- One Pink Top (EDTA)
Submit
- 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.
Also Acceptable:
- 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling
- Allow specimen to clot completely at room temperature
- Avoid Repeated Freeze/Thaw Cycles
- Separate from cells ASAP
- State patient's last dose in hours.
Rejection Criteria
- Use of separator tubes.
Stability
Ambient: 8 Hour(s); Refrigerated: 1 Month(s); Frozen: 3 Month(s); Incubated: Unacceptable
Methodology
- Immunoassay
Performed
Mon-Fri
Reported
1-3 Day(s)
CPT Codes
- 80185
Interpretive Data
Please see report for interpretive data.
Phenytoin is potentially toxic at levels greater than 20.0 ug/mL.
Phenytoin is potentially toxic at levels greater than 20.0 ug/mL.
Components
- 2714 - PHENYTOIN
- 2920 - LAST DOSE
Last Updated: February 7, 2025 @ 10:13 am
Disclaimer:
It is preferable to locate tests on the website and not rely on printed test information, which may soon be out of date. Updated test information can only be guaranteed by using this website.