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Nursing workload assessment in an intensive care unit: A retrospective observational study using the Nursing
Pedro Miguel Garcez Sardo1,2, Rui Pedro Antunes Macedo3, José Joaquim Marques Alvarelhão1
1Escola Superior de Saúde da Universidade de Aveiro (ESSUA), Universidade de Aveiro (UA), Aveiro, Portugal.
Background:
Nursing Activities Score (NAS) is a promising tool for calculating the nursing workload in intensive care units (ICU). However, data on intensive care nursing activities in Portugal are practically non-existent.
Aim:
To assess the nursing workload in a Portuguese ICU using the NAS.
Study Design:
Retrospective cohort study developed throughout the analysis of the electronic health record database from 56 adult patients admitted to a six-bed Portuguese ICU between 1 June-31 August 2020. The nursing workload was assessed by the Portuguese version of the NAS. The study was approved by the Hospital Council Board and Ethics Committee. The study report followed the STROBE guidelines.
Results:
The average occupancy rate was 73.55% (±16.60%). The average nursing workload per participant was 67.52 (±10.91) points. There was a correlation between the occupancy rate and the nursing workload. In 35.78% of the days, the nursing workload was higher than the available human resources, overloading nurse staffing/team.
Conclusions:
The nursing workload reported follows the trend of the international studies and the results reinforce the importance of adjusting the nursing staffing to the complexity of nursing care in this ICU. This study highlighted periods of nursing workload that could compromise patient safety.
Relevance To Clinical Practice:
This was one of the first studies carried out with the NAS after its cross-cultural adaptation and validation for the Portuguese population. The nursing workload at the patient level was higher in the first 24 h of ICU stays. Because of the 'administrative and management activities' related to the 'patient discharge procedures', the last 24 h of ICU stays also presented high levels of nursing workload. The implementation of a nurse-to-patient ratio of 1:1 may contribute to safer nurse staffing and to improve patient safety in this Tertiary (level 3) ICU.
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