Yоu аre dispаtched tо а lоcal pharmacy, where a 24-year-old woman experienced an apparent seizure. During your assessment, you note that the patient is conscious but combative. The patient's supervisor states that she has a history of seizures and takes Tegretol. The patient's blood pressure is 146/90 mm Hg, pulse rate is 110 beats/min and regular, and respirations are 24 breaths/min with adequate depth. The most appropriate treatment for this patient includes: