Abstract
Objectives: During the COVID-19 pandemic, a shortage of intensive care unit beds was encountered across Europe. Opening a semi-intensive pulmonary ward freed up intensive care unit beds. This study aimed to determine the appropriate nurse staffing level for a semi-intensive pulmonology unit (SIPU) for patients with COVID-19 and to identify factors associated with an increase in nursing workload in this type of unit.
Methods: This was a retrospective study of the SIPU of the Erasme university clinics in Belgium. Nursing staff was determined with the Nursing Activities Score (NAS) during the second wave of COVID-19 in Belgium.
Results: During the study period, 59 patients were admitted to the SIPU, and a total of 416 NAS scores were encoded. The mean (+/-SD) NAS was 70.3% (+/-16.6%). Total NAS varied significantly depending on the reason for admission: respiratory distress (mean [SD] NAS, 71.6% [+/-13.9%]) or critical illness-related weakness (65.1% +/- 10.9%). The items encoded were significantly different depending on the reason for admission. In multivariate analysis, body mass index > 30 (odds ratio [OR], 1.77; 95% confidence interval [CI], 1.07-3.30) and higher Simplified Acute Physiology Score II score (OR, 1.05; 95 CI, 1.02-1.11) were associated with higher NAS. Patients admitted via the emergency department (OR, 2.45; 95% CI, 1.15-5.22) had higher NAS. Patients on noninvasive ventilation (OR, 13.65; 95% CI, 3.76-49.5) and oxygen therapy (OR, 4.29; 95% CI, 1.27-14.48) had higher NAS. High peripheral venous oxygen saturation (OR, 0.86; 95% CI, 0.78-0.94) was a predictor of lower workload.
Conclusion: A ratio of 2 nurses to 3 patients is necessary for SIPU care of patients with COVID-19. Factors associated with higher workload were high Simplified Acute Physiology Score II score, body mass index > 30, admission via emergency room, patients on oxygen, and noninvasive ventilation.