Variations in transmucosal gastric potential difference during hemorrhagic shock in the rat.

Transmucosal gastric potential difference (TGPD) was measured in the antrum and fundus of the stomach in two groups of rats submitted to hemorrhagic shock. In the first group the stomach contained 2 cm3 of 0.1 N HCl and in the second 2 cm3 of physiological saline.