Hi,
Thank you for posting your query.
Yes, both eptoin (
phenytoin) and
folic acid (
folate) can be detected in the
blood test and their exact amount can be quantified.
The tests are serum phenytoin level and serum folate level respectively. They should be done in the morning, before food.
Best wishes,
Dr Sudhir Kumar MD DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad