In order to provide effective nursing, the nurse must be able to complete a comprehensive nursing assessment. The conceptual-theoretical system of knowledge-represented by models and theories- is a vehicle of professionalism. The Neuman Model sets expectations for nursing assessment that are both comprehensive and realistic in terms of nursing practice. The Neuman Model expectes that the nurse will view the clients as unique, a composite of physiological, psychological, socio culturel, and developmental factors. Therefore, the nurse must collect data about all of factors. In order to established the uniqueness of each client within a total system perspective. Furthermore, the source and strength of environmental stressors for the client must be determined in the intrapersonal (body system), interpersonal (relationships), and extrapersonal (distal environment) system. The nurse, before planning action, must determine the congruency of both the nurse and client perceptions of the client's health status and health goals. The Neuman System Model guidence nurses regarding Fibromiyalgia patients (FM). Enhancement of the nurse's knowledge of Fibromiyalgia will improve the nurse's ability to identify stressors and diminished sources of clients with Fibromiyalgia. Appropriate nursing interventions are designed based on an accurate assesment by the nurse.