For the 1st week of nursing school, the most high-yield topic is tissue integrity. Well, what is tissue integrity? It’s your skin’s ability to repair itself and stay healthy. Now some skin has a harder time with this.So,Now some skin has a harder time with this. If you’ve been around an elderly person lately, you may have noticed some bandaids on their arms or hands. That’s because as people get older, they don’t make as much collagen, which makes their skin thinner and less stretchy. A lot of things slow down as people get older, including their ability to heal. So an older person might take months to heal from a little scratch. for the 1st week of nursing school, the most high-yield topic is tissue integrity.