Tested for Phenytoin in Blood
Normal range: 10.0 - 20.0 ug/mL
Day 3: 5.8 
Day 4: 9.2 
Day 5: 4.7 
Day 6: 0.6 

Tested for Phenytoin in Blood
Trend is decreasing
Abnormality: 
Low values on days 3, 4, 5, 6
