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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
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About this test
Monitors anti-seizure medication levels. Ensures effective seizure control while avoiding toxic side effects.
How to prepare
- 1
Bring a valid photo ID to your appointment
- 2
Plan for a 15–30 minute visit