Aust Crit Care
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Multicenter Study Observational Study
An investigation of light and sound levels on intensive care units in China.
The intensive care units' (ICU) environment is considered clinically relevant sources of stress for patients. ⋯ High sound pressure levels are prevalent throughout 24h in the ICUs, especially in the SICU. Many of the readings exceeded international standards. Peak sound pressure levels were related primarily to staff activities and the alarm sounds of machines. ICU patients are exposed to high levels of artificial light continuously throughout the day and night.