Measuring the nursing workload in intensive care with the Nursing Activities Score (NAS): A prospective study in 16 hospitals in Belgium.

PURPOSE: The evaluation of nursing workload is a common practice in intensive care units (ICUs). It allows the calculation of an optimal nurse/patient ratio (N/P) which is a major challenge to ensuring the quality of care while controlling the costs of health care. The objectives of this study were, therefore, to evaluate the N/P ratio and to study nursing activities in intensive care in French-speaking Belgium. METHODS: The Nursing Activities Score (NAS) was prospectively recorded by shift for two periods of one month each in 16 French-speaking Belgian hospitals for a total of 316 ICU beds in 24 ICUs. RESULTS: We included 3377 patients in the study, of which 64% were medical (versus surgical). The results for 24-hour NAS (68.6%) were significantly different from the NAS per shift (Morning: 61.3%, Afternoon: 58.4%, Night: 55.0%). Outliers were significantly more prevalent among men and patients who died and outliers had longer stays in the ICU. Finally, mobilization-positioning and clinical-administrative tasks took, on average, more time for nurses in the ICU. CONCLUSIONS: There is a significant difference in N/P ratio between the Belgian regulation (1/3) and the one calculated by the NAS (1/1.5). A systematic objective assessment of shift workload should be done to avoid N/P ratio differences in intensive care.

The Double-Trunk Mask Improves Oxygenation During High-Flow Nasal Cannula Therapy for Acute Hypoxemic Respiratory Failure.

BACKGROUND: High-flow nasal cannula (HFNC) oxygen therapy is used to deliver an FIO2 from 0.21 to 1.0. The double-trunk mask (DTM) is a device designed to increase the FIO2 in patients with a high inspiratory flow demand. The aim of our study was to evaluate the effect of DTM in hypoxemic subjects already receiving HFNC. METHODS: We report a prospective multi-center crossover pilot study including 15 subjects treated with HFNC for acute hypoxemic respiratory failure. Measurements were performed at the end of 30-min periods with HFNC only, with HFNC + DTM, and again with HFNC only. RESULTS: Compared with HFNC alone, HFNC + DTM increased PaO2 from 68 ± 14 mm Hg to 85 ± 22 mm Hg (P < .001) and did not affect PaCO2 (P = .18). In the 11 responders, the PaO2 increased from 63 ± 12 mm Hg to 88 ± 23 mm Hg (P < .001). No complications were reported during DTM use. CONCLUSION: In subjects receiving oxygen via HFNC, the addition of the DTM over the HFNC increased PaO2 without changing the PaCO2 .