A nurse is caring for a client who was prescribed phenytoin. Which of the following adverse effects of this medication should the nurse report to the provider?

C Ataxia can occur as a side effect of phenytoin, especially if the dosage is too high or if the client is particularly sensitive to the medication. It can impair the client's ability to perform activities of daily living safely. Therefore, it should be monitored closely, and significant ataxia should be reported to the provider for evaluation and possible adjustment of the medication dosage.A. This is a known adverse effect of phenytoin. It can cause the gums to become swollen, enlarged, and prone to bleeding. Although it is not typically harmful to the client's health, it can affect oral hygiene and appearance. The nurse should educate the client about good oral care practices and encourage regular dental check-ups. While it does not necessarily need to be reported immediately, it should be documented and monitored.B. Drowsiness is a common side effect of phenytoin and many other anticonvulsant medications. It often occurs initially or when the dosage is increased. While it can affect the client's daily activities and quality of life, it does not usually require immediate reporting unless it is severe or persistent.D. Hirsutism is a less common side effect of phenytoin. It results from hormonal changes induced by the medication. While it may not pose an immediate threat to the client's health, it can cause distress and affect self-esteem. Therefore, it should be reported to the provider for further assessment and management.