Before administering the evening dose of carbamazepine, the nurse notes that the patient’s morning carbamazepine level was 84 mcg/mL. What action should the nurse take?

The correct answer is A: Choice A reason: Notifying the healthcare provider is crucial because the patient’s carbamazepine level is significantly above the therapeutic range, which is 4-12 mcg/mL. A level of 84 mcg/mL indicates a high risk of toxicity, and the healthcare provider must be informed to take appropriate action, which may include adjusting the dose or discontinuing the medication. Choice B reason: Administering the carbamazepine as prescribed would not be safe without addressing the elevated drug level. Continuing to administer the medication could increase the risk of severe side effects and toxicity due to the already high serum level. Choice C reason: Withholding the dose may be a necessary immediate action, but it does not address the need for medical intervention to manage the patient’s elevated drug level. Therefore, while withholding the dose might be part of the response, it should follow notifying the healthcare provider. Choice D reason: Assessing the patient for side effects is important, but it is not the most immediate action required. The priority is to notify the healthcare provider because of the potential for serious toxicity given the high carbamazepine level.