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Objective:: To analyse the defining characteristics and related factors in the nursing diagnosis Excess fluid volume and its relationship to sociodemographic and clinical variables in haemodialysis patients., Method:: Cross-sectional study, conducted using a form and physical examination, with a sample of 100 patients, between December 2012 and April 2013 at a university hospital and a dialysis clinic., Results:: It was found 10 significant statistical associations between the defining characteristics/ related factors of Excess fluid volume and the sociodemographic and clinical variables., Conclusion:: The defining characteristics and related factors of Excess fluid volume could be influenced by sociodemographic and clinical variables in haemodialysis clientele.

Objective: To evaluate the accuracy of the defining characteristics of the excess fluid volume nursing diagnosis of NANDA International, in patients undergoing hemodialysis., Method: This was a study of diagnostic accuracy, with a cross-sectional design, performed in two stages. The first, involving 100 patients from a dialysis clinic and a university hospital in northeastern Brazil, investigated the presence and absence of the defining characteristics of excess fluid volume. In the second step, these characteristics were evaluated by diagnostic nurses, who judged the presence or absence of the diagnosis. To analyze the measures of accuracy, sensitivity, specificity, and positive and negative predictive values were calculated. Approval was given by the Research Ethics Committee under authorization No. 148.428., Results: The most sensitive indicator was edema and most specific were pulmonary congestion, adventitious breath sounds and restlessness., Conclusion: The more accurate defining characteristics, considered valid for the diagnostic inference of excess fluid volume in patients undergoing hemodialysis were edema, pulmonary congestion, adventitious breath sounds and restlessness. Thus, in the presence of these, the nurse may safely assume the presence of the diagnosis studied.

Objective: To identify the prevalence of nursing diagnosis of fluid volume excess and their defining characteristics in hemodialysis patients and the association between them., Method: Cross-sectional study conducted in two steps. We interviewed 100 patients between the months of December 2012 and April 2013 in a teaching hospital and one hemodialysis clinic. The inference was performed by diagnostician nurses between July and September 2013., Results: The diagnostic studied was identified in 82% of patients. The characteristics that were statistically associated: bounding pulses, pulmonary congestion, jugular vein distention, edema, change in electrolytes, weight gain, intake greater than output and abnormal breath sounds. Among these, edema and weight gain had the highest chances for the development of this diagnostic., Conclusion: The analyzed diagnostic is prevalent in this population and eight characteristics presented significant association.

Cross-sectional study aimed to identify the components of a Roy's adaptation model in patients undergoing hemodialysis at a dialysis center. 178 patients participated in a dialysis center in the Brazil Northeast region. Data collection occurred from October/2011 to February/2012 through the use of interviews and physical examinations. The components identified were: adaptive problems, behaviors and stimuli. The main adaptive problems were: intracellular fluid retention, hyperkalemia, hypothermia, edema, intolerance for performing daily activities. The behaviors were: anuria, hydroelectrolyte imbalance, gain of weight in a short period of time, elevated serum potassium concentrations, body temperature below 36 degrees C, fluid retention, fatigue, difficulty performing activities of daily living. The stimuli were: renal injury, cardiopulmonary bypass, hemodialysis, failure to observe fluid intake restriction, electrolyte disorder, cold environment, adverse effects related to treatment. We conclude that the identification of these components, classified as physiological mode, contribute to the planning of specific nursing interventions focused on the adaptation of the clientele.