abstract background: endotracheal suctioning (ets) is an essential procedure performed for mechanically ventilated patients. ets can be either performed by open or closed suctioning system (css). there may be some concern on how closed‑system ets is practiced by intensive care nurses. this study was designed to investigate closed‑system ets practices of critical care nurses and to compare their...

results the results show the artificial lighting obtained by difference methods of the overall lighting from natural lighting in closed blinds mode equal to 266 lux and night lighting 283.5 lux that they have no significant differences with each other (p = 0.269). as well as the illumination intensity obtained from a standard grid method is 283.5 lux and illumination intensity based on luminair...