A nurse is providing discharge instructions to a client who has been prescribed Lithium for bipolar disorder. Which of the following statements by the client indicates a need for further teaching?

A. "I should maintain a consistent sodium intake in my diet.": Sodium levels directly affect lithium levels in the body. Fluctuations in sodium intake can lead to lithium toxicity or subtherapeutic effects. A consistent sodium intake helps maintain stable lithium blood levels. B. "I should have regular blood tests to monitor my lithium levels.": Lithium has a narrow therapeutic range and can become toxic if levels rise too high. Regular monitoring is essential to ensure safe and effective treatment, especially during dose adjustments or illness. C. "It's important to restrict my fluid intake while taking this medication.": This statement is incorrect and indicates a need for further teaching. Fluid restriction can lead to dehydration, increasing lithium reabsorption in the kidneys and raising the risk of toxicity. Clients should maintain adequate hydration, especially during hot weather or illness. D. "I need to report any signs of nausea, vomiting, or diarrhea to my doctor.": These are early signs of lithium toxicity. Prompt reporting is crucial so that lithium levels can be checked and treatment adjusted to prevent progression to severe toxicity.