Figure 7. Time constants of decay for Kv2.1 and Delta C318 are plotted as a function of ketamine and halothane concentration. Currents were elicited by a 10-s test pulse to +50 mV from a V^hof -50 or -60 mV. The number of oocytes tested (n) for each data point are indicated in parentheses. Dose-dependent reductions in tau^decayfor Kv2.1 and Delta C318 were significantly different at 1.35 and 2.7 mM halothane, and also at 75 micro Meter ketamine.