From the first to the fourth critical period of COVID-19: what has changed in nursing practice environments in hospital settings?

Background: The COVID-19 pandemic reinforced the need to invest in nursing practice environments and health institutions were led to implement several changes. In this sense, this study aimed to analyze the impact of the changes that occurred in nursing practice  environments between the first and fourth critical periods of the pandemic.

Methods: Quantitative, observational study, conducted in a University Hospital, with the participation of 713 registered nurses.