Blood
Phenytoin (Free)
Also known as: Free Dilantin, Free Phenytoin
CONVERT & COMPARE
µg/mL
=
7.92
µmol/L
=
2
mcg/mL
=
2
ug/mL
=
7.92
umol/L
=
7.92
mcmol/L
Reference ranges by source
Published adult intervals: 3, from 3 named sources, shown in µg/mL.
Related biomarkers
More tests in the blood category.
Sources
Last updated 2026-05-02
This page presents source-specific reference data and sourced explanations. For general wellness information only. This is not medical advice. For diagnosis or treatment of any condition, talk to a qualified clinician.
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