When initiating lithium, how long should you wait before checking a lithium level? What is the therapeutic goal level of lithium?

$5$ days; $0\mathrm{.}6$ to $0\mathrm{.}8$ mEq$/$L$46$ weeks; $0\mathrm{.}6$ to $0\mathrm{.}8$ mEq$/$L$3$ days; $0\mathrm{.}81\mathrm{.}2$ mEq$/$LNo need to check until patient experiences symptoms of lithium toxicity