Figure 1.

Box and whisker plots for heart rate in isoflurane anesthetized foals. Lidocaine was administered intraoperatively in the LIDO group but not in the HC group. Data were collected at baseline (dark grey), intraoperatively (middle grey), and at the recovery (light grey). The whiskers represent the range of values, the boxes represent the interquartile range, and the lines within each box represent the median value for the heart rate. *Statistically significant between groups. **Statistically significant different compared with baseline.