QUALITY IMPROVEMENT CYCLE TO REDUCE THE CONTAMINATION RATE OF BLOOD CULTURES
Blood culture; biological contamination; phlebotomy; total quality management; patient safety.
Introduction: Blood culture is the reference test for identifying bacteria in blood samples. A contaminated blood culture sample is characterized by the presence of microorganisms that are not present in the blood of the individual in question, but that were unintentionally introduced during sample collection or processing. False positive samples compromise the reliability of the results obtained in the analysis and cause repercussions such as increased hospital stay and corresponding increase in hospital costs. Objective: To carry out a quality improvement cycle to reduce the contamination rate of blood cultures in a public hospital in Rio de Janeiro. Methodology: Based on a quality improvement cycle, a quasi-experimental, before-and-after quantitative-qualitative study is being developed, without a control group, carried out in the 2024/2025 biennium, following the SQUIRE guidelines. For the proposed evaluation, eleven quality criteria related to the causes of contamination of blood culture samples were defined. The interventions will be planned and implemented in a participatory and multifaceted manner, based on data and with the objective of increasing the health team's adherence to the blood culture collection protocol and quality criteria. The ethical precepts of resolution No. 466/12 will be preserved. Results: We were successful in interviewing 31 nurses, and in verbal reports, only 29.03% demonstrated that they performed adequate antisepsis of the patient's skin. Observation of the execution of the procedure confirmed this information, as it also showed that the critical point in performing the procedure was the antisepsis of the patient's skin. Conclusions: The steps developed so far have highlighted the need for training professionals, so that we can meet the standards accepted by ANVISA. The data collected, although partial, will be important to support discussions and actions aimed at professional qualification, aiming to reduce potential complications related to the procedure, ensuring patient safety.