Utilizing the professional expertise of school nurses, the Des Moines (Iowa) Public School system is committed to providing professional health services and health education for students, employees, and the community in order to promote success in the learning process. The health services program is an integral part of the total school program in the Des Moines public schools. The program provides for direct health services, including appraisals and preventive and remedial aspects for students and staff. Health education and health promotion are provided through planned, correlated, incidental instruction, and integrated learning. Safety is provided for through review of the physical environment, which contributes to student success in the teaching and learning process. The health services program ensures direct service and ongoing collaboration with community agencies for students, staff, and parents to decrease barriers to learning. This paper provides an input evaluation, a process evaluation, and a product evaluation of the 1993-94 health services program. A Comprehensive School Health model recommended for districts by a health advisory committee is under review. (LL)