Healthcare-associated infections (HAIs) are a relevant public health problem, as they increase hospitalization, costs, and mortality. Oncologic patients have elevated risk due to immunosuppression, complex therapies, device use, and invasive procedures. Therefore, it is essential to invest in continuous training strategies. The workshop is a practical and interactive methodology that stimulates engagement and exchange among participants. Pre- and post-intervention evaluation allows measurement of the impact of teaching. The objective of this study is to describe and evaluate the effect of a workshop on HAI prevention in the oncologic ICU, comparing the knowledge of nurses and nursing technicians before and after the intervention.

Descriptive study carried out in March 2025 with nursing professionals working in an oncologic ICU in a large hospital. A pre-test with objective questions on HAI prevention was applied, followed by an interactive educational workshop covering topics such as hand hygiene (good practices and indication for glove use), care with central venous catheters (dressings), environmental cleaning (in the care of patients with Clostridioides difficile), and precautions and isolation (contact precautions: order of donning/doffing). After the workshop, participants answered the post-test with the same questions as the pre-test. Data were analyzed quantitatively by comparing correct answers before and after the intervention.

One hundred thirty-four professionals participated, including nurses and nursing technicians. Overall performance was 23.88% (32/134) in the pre-test and 80.67% (96/119) in the post-test, demonstrating a marked improvement in team learning. The questions with the most marked improvement in the post-test were about: environmental cleaning care for patients in isolation for C. difficile from 61% in the pre-test to 97% in the post-test; the question regarding correct indication for glove use increased from 63% to 87%; and the question regarding the appropriate order of doffing showed a significant increase from 56% to 97%.

The educational workshop approach proved to be an effective tool for training the nursing team. The pre- and post-test comparison allowed us to evaluate the positive impact of this intervention. Interactive, practical, and educational actions like this are capable of improving team knowledge and, consequently, safety.