A client has just been admitted to the hospital for medication adjustment after outpatient treatment failure of his bipolar disorder and returning mania. He tells his primary nurse about his...

A client has just been admitted to the hospital for medication adjustment after outpatient treatment failure of his bipolar disorder and returning mania. He tells his primary nurse about his medications and treatment. Which of his following statements would raise the most urgent need for more medication instruction about his lithium therapy?

1. “My doctor tells me that my lithium level is 1.0 so I don't have to worry about my levels.”

2. “I've been getting a lot of good exercise playing on a local soccer team.”

3. “I'm trying hard to watch my diet and eat healthy.”

4. “I have learned to take my lithium even when I'm not feeling well, like when I had the stomach flu.”