-At which site is the amount of $\mathrm{K}^{+}$in tubular fluid lowest in a person who is on a very low- $\mathrm{K}^{+}$diet?

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[Chapter $5, \mathrm{VB}$ ]. $\mathrm{K}^{+}$is filtered and then reabsorbed in the proximal tubule and loop of Henle. In a person on a diet that is very low in $\mathrm{K}^{+}$, the distal tubule continues to reabsorb $\mathrm{K}^{+}$so that the amount of $\mathrm{K}^{+}$present in tubular fluid is lowest in the final urine. If the person were on a high $-\mathrm{K}^{+}$diet, then $\mathrm{K}^{+}$would be secreted, not reabsorbed, in the distal tubule.

-At Which Site Is the Amount Of K+\mathrm{K}^{+}K+ In Tubular Fluid Lowest in a Person Who Is on Fluid

-At Which Site Is the Amount Of $\mathrm{K}^{+}$ In Tubular Fluid Lowest in a Person Who Is on Fluid