Sign-in to Ask A Doctor - 24x7
OR
Sign in with Google
What Does A Serum Phenyltoin Level Of 2.9 Suggest?
Question: Serum Phenyltoin level report is 2.9,iits below normal value
Please suggest
Please suggest
Brief Answer:
You may need repeat test.
Detailed Answer:
Hello
You are getting maximum dose of phenytoin.
Patient generally have total phenytoin level 10.0-20.0 mcg/mL for therapeutic effects.
Normal level of free phenytoin level is 1.0-2.0 mcg/mL.
It is important to know 2.9 value is related to total or free phenytoin level.
If it is total level then it is low and you may need repeat test.
Get well soon.
Hope I have answered your question.
Further queries are most welcome.
Take Care
Dr.Indu XXXXXXX
You may need repeat test.
Detailed Answer:
Hello
You are getting maximum dose of phenytoin.
Patient generally have total phenytoin level 10.0-20.0 mcg/mL for therapeutic effects.
Normal level of free phenytoin level is 1.0-2.0 mcg/mL.
It is important to know 2.9 value is related to total or free phenytoin level.
If it is total level then it is low and you may need repeat test.
Get well soon.
Hope I have answered your question.
Further queries are most welcome.
Take Care
Dr.Indu XXXXXXX
Above answer was peer-reviewed by :
Dr. Chakravarthy Mazumdar
Answered by
Get personalised answers from verified doctor in minutes across 80+ specialties
