[Nursing care for patients with sickle cell disease, in the light of Roy's model].

This study aimed at applying the concepts from Roy's Adaptation Model in order to identify the behaviors (adaptive and ineffective) of patients with sickle cell disease as well as the focal, contextual and residual stimuli that are responsible for such behaviors. Data collection was conducted in the Hemoglobinopathy Outpatient Unit of the University Hospital at the University of São Paulo at Ribeirão Preto School of Medicine. Nine subjects (8 females and 1 male) were investigated. With respect to the physiological aspect, the ineffective behavior of low oxygenation and its outcomes (compromised physical development, sexual retardation hemolysis jaundice, respiratory alterations) were evidenced. Regarding the psychosocial aspects, self-image showed a reduction in self-esteem as the most distinguished behavior; role performance was characterized by occupation change. Considering interdependence, the mother was reported as the most frequent significant "other". Vaso-occlusion was predominantly identified as the causing stimulus for ineffective behaviors. It was verified that the affected physiological function alters other adaptive aspects.