Abstract
Objective: To identify the frequency of the most prevalent nursing interventions in the ICU and to identify the possibility of planning the care more realistically and objectively with the Nursing Activities Score (NAS) assessment of the time spent and adequate design. To verify the influence of variables on the NAS and analyze the mortality by the correlation of the NAS with the Simplified Acute Physiology Score 3 (SAPS 3). Correlate the NAS with the Therapeutic intervention scoring system-28 (TISS-28). Method: Prospective study using manual data collection and chart analysis, with an "n" of 179 patients. Data were compiled and analyzed from the point of view of descriptive statistics. Results: The mean NAS was 71.43. There was no influence of the variables age, length of stay and origin, the post-discharge destination variable presented a positive correlation considering the death outcome. Positive correlation of TISS-28 with the exception of the domain of basic activities. SAPS 3 showed a positive correlation where NAS rises in patients who died. Inadequacy in the dimensioning of the studied units. Conclusion: The NAS is an instrument that covers what is required to assess the demand for care, translating into a valid management tool.