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Phenytoin (Dilantin)

Measures the level of phenytoin in blood. This helps check whether the amount is in a target range and whether it may be too low or too high.

฿416.00

Measures the level of phenytoin in blood. This helps check whether the amount is in a target range and whether it may be too low or too high.

Blood

15 min at lab

Results: 1 day

Typical Use

Used to monitor phenytoin treatment for seizures, adjust dose, and check for low levels (breakthrough seizures) or high levels (side effects or toxicity).

Preparation

Wear clothing that allows easy access to your arm

Arrive well-hydrated

Continue regular medications unless advised otherwise by your doctor

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