A nurse is reinforcing teaching with a female client who is taking phenytoin. Which of the following statements should the nurse include in the teaching?

A. "You might experience swollen gums while taking this medication." Phenytoin is known to cause gingival hyperplasia, which is swelling and overgrowth of the gums. This is a common side effect, and clients should be informed about it so they can maintain good oral hygiene and seek dental care if necessary. B. "You can skip a dose of this medication if you are nauseated." Skipping doses is not advised. Phenytoin should be taken consistently, and skipping doses can lead to decreased seizure control. If nausea occurs, the client should contact their healthcare provider for guidance. C. "You can safely take this medication if you become pregnant." Phenytoin is classified as a Category D medication, indicating evidence of risk to the fetus. Women of childbearing age should discuss effective contraception and consult their healthcare provider regarding the risks associated with taking phenytoin during pregnancy. D. "You should expect to have blood work every 6 months while taking this medication." Regular monitoring of serum levels is necessary, typically every 1-3 months, especially after dosage changes. Monitoring ensures therapeutic levels and prevents toxicity, so stating that blood work is only required every 6 months may be insufficient.