Does the trial court abused its authority in giving instructions to a jury in a personal injury case?

Although we recognize the possibility of confusion which might have arisen from these instructions, we do not find that the trial court abused its discretion in giving them. The trial court based its decision on sound authority. The instructions did not, as petitioner contends, put the court in the impermissible position of making an argument to the jury. (Slayton v. Wright (1969) 271 Cal.App.2d 219, 239, 76 Cal.Rptr. 494.)