A Child Is Prescribed Phenytoin for Seizures

A child is prescribed phenytoin for seizures. Monitoring includes assessing:

A) For phenytoin hypersensitivity syndrome three to eight weeks after starting treatment
B) For pedal edema throughout therapy
C) Heart rate at each visit, as therapy may have to be altered if heart rate is less than 60 beats per minute (bpm)
D) For vision changes, such as red-green blindness, at least annually