Lithium Carbonate is used to manage which condition?

Lithium Carbonate is primarily used to manage bipolar disorder, a mental health condition characterized by extreme mood swings, including emotional highs (mania or hypomania) and lows (depression). Lithium helps stabilize mood and reduces the frequency and severity of these mood swings. It is believed to work by affecting the flow of sodium through nerve and muscle cells, which is vital for the transmission of nerve impulses.

In the context of the other choices, lithium is not involved in managing seizures, as medications such as antiepileptics would be prescribed for that condition. High cholesterol is typically managed with statins or other lipid-lowering agents, but lithium does not have a role in altering cholesterol levels. Lastly, for fungal infections, antifungal medications are the standard treatment, and lithium has no application in that area. Thus, lithium's specificity for bipolar disorder makes it the correct answer in this case.