A Patient Has Been Taking Carbamazepine (Tegretol)for Several Months and Is

A patient has been taking carbamazepine (Tegretol) for several months and is worried because the physician has increased the dose twice since the beginning of therapy.Which is the nurse's best explanation to the patient?

A) The initial dose was not sufficient to prevent seizures.
B) Autoinduction results in lower-than-expected drug concentrations.
C) Because the seizures are difficult to manage, increased doses are needed to control them.
D) Forgetting to take the medication as prescribed led to a need for increased dosage.