Serum - Gel

NOTE: Both Total Phenytoin and Albumin must be measured

Free Phenytoin is a calculated result, RCH Laboratory Services DO NOT report this result. Please use the link below to calculate the Free Phenytoin using a web based Calculator.

The Sheiner-Tozer Equation for Corrected Phenytoin

Corrected Phenytoin = Measured Phenytoin Level / ((adjustment x albumin) + 0.1)

http://www.mdcalc.com/phenytoin-dilantin-correction-for-albumin-or-renal-failure/

Reference:

1. Martin E, Tozer TN, Sheiner LB, Riegelman S., (1997), The clinical pharmacokinetics of phenytoin. J Pharmacokinet Biopharm., 5(6):579-96.


2. MAYO Clinic Clinical and Interpretive Information


3. External links last reviewed: 23/10/2014

As Required