I agree with the previous posters. I've worked in level III NICUs and I've worked as a school nurse. The school nurse job was far more challenging.
At the time I took that job, I'd been a nurse for almost 25 years, a mother for almost 15 years and a resident of the school district for over 5 years. I thought I had a pretty good idea of what school nursing entailed as well as the student population of our schools. Boy, was I wrong!
One of the sickest children I've cared for was a little boy who came to school almost every day. The advanced planning to protect his health and safety and prepare for potential emergencies was the most extensive I've ever done. And we knew about him
The surprise full-blown asthma attack in a child not previously known to have asthma took every skill and every nerve I had. Imagine my surprise when I learned two days before the start of school that a family had "forgotten" to mention that their child had begun cancer treatment over the summer and would need central line care in school.
Then there's the routine, daily stuff: diabetes management with multiple students, all with different levels of skill and independence, known asthmatics, students with seizure disorders, med pass that could rival a lnursing home hall, minor (and sometimes major) first aid and illness, and staff issues, including a stroke in the office, heart disease, injuries, etc.
Jump in full force and you will learn as much, if not more than you would in a hospital setting, along with a lot of creativity, since you won't have all the supplies you need, or an army of nurses and doctors to back you up.
In terms of presenting this experience to potential employers, don't worry if you lack some technical skills, although I doubt that you will. Hands-on skills are easy to teach and evaluate. It's the ability to organize, anticipate needs, advocate for the student, plan, work independently, teach, teach, and did I mention teach effectively that you will develop that will put you far ahead of most new grads.