← Lab Value Corrections
Phenytoin Correction Practice Problems
Calculate the corrected phenytoin level using the Sheiner-Tozer equation (or Winter-Tozer for renal impairment). These formulas adjust measured phenytoin for hypoalbuminemia. This is one of the most commonly tested pharmacokinetic calculations on the NAPLEX.
Print a Phenytoin Correction Worksheet
Generate a PDF with practice problems and worked solutions — perfect for offline study or group practice.
Generate Worksheet