A potent drug has been given by multiple IV bolus dose of $100$ mg every $4$ hours. Assume a one compartment linear model applies to this drug in this concentration range. The half$-$life and V for this drug in this patient $(55\mathrm{.}6$ kg$)$ are $3\mathrm{.}5$ hr and $0\mathrm{.}78$ L$/$kg$,$ respectively. Calculate the expected Cpmax and Cpmin values at steady state.