School nurses are responsible for developing, maintaining, and/or updating health management plans for students with chronic illnesses and disabilities (including obtaining health care provider orders for care), staff trainings (health plans general and student specific, delegation and follow up of specific health service tasks, scheduled and emergent medication administration), direct care support, concussion management, care coordination between school teams and community health partners, suicide screening, IEP/504 participation, communicable disease prevention/management, etc.
Nurses have more than one site they are responsible for and unfortunately cannot be at multiple places at once.