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. 1999 Aug 15;519(Pt 1):131–141. doi: 10.1111/j.1469-7793.1999.0131o.x

Figure 3. Effects of raised [K+]o and ouabain on membrane potential and extracellular K+ activity.

Figure 3

A, changes in membrane potential of DVMs induced by switching the superperfusate from one containing 3 mM K+ to one containing 10 mM KCl (−) or 10 mM K2SO4 (Inline graphic) at time zero (arrow; see Methods). B, effects on membrane potential of 2–5 μM ouabain when [K+]o was raised to 10 mM. C and D, changes in membrane potential (C) and contralaterally measured extracellular K+ activity (D) induced by 25 μM ouabain.