a client diagnosed with bipolar disorder, who has taken lithium carbonate (lithane) for 1 year, presents in an emergency department with severe diarrhea, blurred vision, and tinnitus. how should the nurse interpret these symptoms? a. symptoms indicate consumption of foods high in tyramine. b. symptoms indicate lithium carbonate discontinuation syndrome. c. symptoms indicate the development of lithium carbonate tolerance. d. symptoms indicate lithium carbonate toxicity.