You have been trained to identify and patch up wounds in preparation for more serious treatment.
BENEFIT
When you make a Heal check to perform first aid on a creature, that creature gains temporary hit points equal to your Wisdom modifier plus your ranks in the Heal skill. These temporary hit points last for 1 minute or until lost.
Special: If you use an ability score other than Wisdom to determine your bonus to Heal checks, you use that ability score in place of Wisdom for determining the number of temporary hit points the target gains.