Table 4.

Effect of switching high-KHCO₃ diet to high-KCl diet on arterial blood electrolytes

Measurements	High KHCO3 (n = 5)	High KCl
		4 h (n = 5)	8 h (n = 5)
Na+, mM	152 ± 1	155 ± 1	156 ± 1
K+, mM	4.2 ± 0.2	4.3 ± 0.3	4.9 ± 0.4
Cl−, mM	107 ± 2	123 ± 2*	125 ± 1*
${\text{HCO}}_3^{-}$, mM	26.9 ± 0.8	15.5 ± 1.0*	15.0 ± 0.3*
Blood urea nitrogen	21.8 ± 1.1	18.2 ± 1.2	25.4 ± 1.1

Values are means ± SE. *P < 0.05 between the high KHCO₃-fed group and high KCl-fed group.