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Therapeutic Drug Monitoring
Phenytoin (Dilantin)
Monitors anti-seizure medication levels. Ensures effective seizure control while avoiding toxic side effects.
CPT code
80185
Turnaround time
24–72 hours
Fasting required
No fasting needed
Collection container
Red Top (No Additive)
About this test
Monitors anti-seizure medication levels. Ensures effective seizure control while avoiding toxic side effects.
Specimen requirements
Collection container
Red Top (No Additive)
red top
How to prepare
- 1
Bring a valid photo ID to your appointment
- 2
Plan for a 15–30 minute visit