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    Division for Regional and Local Health Operations

    1100 West 49th Street, Room M149, MC 1908
    Austin, TX 78756

    Phone: (512) 776-7770
    Fax: (512) 776-7590

Division for Regional and Local Health Services ASTDN Model


* ASTDN: Association of State and Territorial Directors of Nursing

Description of the *ASTDN Model

This model consists of three concentric circles. The center circle depicts the nursing process or the art and science of nursing practice. The middle circle suggests a flow or movement of the core functions of assessment, policy development and assurance. The 10 essential services of public health are detailed in the outer circle. The model demonstrates the dynamic nature of the practice of public health nursing within the framework of the core functions and the essential services. The activities performed to accomplish the public health core functions and essential services will include all of the elements of the nursing process. For example, a nurse may utilize evaluation (an element of the nursing process) for policy development (a core function) in monitoring health status to identify community health problems (an essential service).


Last updated September 27, 2010