Abstract
Objective: Evaluate the knowledge of nursing professionals working in the intensive care unit of adults on the measurement of invasive blood pressure, and identify the perception of professionals regarding their degree of knowledge on the topic. Methods: Descriptive, transversal, quantitative study, carried out in a public and teaching hospital. A questionnaire was applied, containing identification data, objective questions about direct blood pressure measurement and self-assessment questions with a Likert scale. The data were analyzed using the quantitative approach, using the SSPS version 21 program. Results: The sample comprised 26 professionals, of whom seven (26.9%) were nurses and 19 (73.1%) nursing technicians. The participants had an average number of 5-11 hits, achieving a regular performance. Most professionals (57.7%) expressed little satisfaction with their knowledge, and in their totality, the subjects said they needed training. Conclusion: There are gaps in the theoretical knowledge of the nursing team regarding the measurement of invasive blood pressure, requiring the implementation of measures that seek to continuously train. The training of these professionals will provide intensive care that is safe and capable of meeting the urgent care needs of this clientele.