Effectiveness of a visual noise warning system on noise levels in a surgical ICU: A quality improvement programme

BACKGROUNDThe effects of noise are harmful to patients in the ICU environment, and the latter are particularly noisy places. High noise levels seem to be a factor in sleep disturbance, which can, in turn, result in increased morbidity.LOCAL PROBLEMHigh noise levels are a recognised problem in ICUs w...