Seriously ill patients in intensive care units are being cared for in environments with sound levels more than 20 dB higher than the WHO’s recommendations. This is shown by a study carried out in partnership between the University of Gothenburg and the University of Borås.
In the study, the researchers registered sound levels around 13 seriously ill patients cared for in the intensive care unit at Södra Älvsborg Hospital over a 24-hour period. The study shows that the sound levels around seriously ill patients were on average between 51 and 55 dB. This is comparable with a busy road.
For the greater part of the 24 hours, between 70 and 90 per cent of the time, the sound level was above 55 dB – in addition, there were a number of short sound bursts above 100 dB.
When the patients were interviewed about their experiences of the surrounding sounds, they recalled both positive and negative experiences. Positive experiences included, for example, the sound of the staff talking quietly between themselves or providing information on ongoing treatment.
“Sounds perceived as frightening were uncontrollable sounds from, for example, alarms, and sounds from seriously ill fellow patients, and treatments and examinations. One patient also described how the sounds around him had entered into his dreams and hallucinations,”says Lotta Johansson, researcher at the Sahlgrenska Academy, who led the study.
The sound levels found by the study are slightly lower than those measured by previous studies, but still significantly higher than the 30 dB recommended by the WHO for patient rooms in hospitals.
“The interesting thing is that what the patients considered most disturbing was unknown and uncontrollable sounds rather than the generally high sound level. This shows that we must take further measures to create healing care environments with better conditions for sleep and recovery for seriously ill patients,” explains Lotta Johansson.
The study “The sound environment in an ICU patient room – A content analysis of sound levels and patient experiences” was published in the journal Intensive and Critical Care Nursing. It is a preliminary study for a larger project in which the researchers will study in more depth and from a longer perspective how the physical environment affects seriously ill patients.
With the increase in population and technology for better living ?rather easy comfortable life this is going to happen. We cannot blame the car users instead we have to blame the manufacturers by giving attractive versions for them. To stop the ill effects of this sound by the motor vehicles two things are possible. Firstly to re locate the patients or vehicle movement. But both are not possible. Why we should not think of the third alternative to reduce the number of vehicle on the road. For this legislation is necessary. Permit the vehicles with numbers ending in odd digit one day and even digit the other day alternating in the week days. This will force the users to share each other’s vehicles to travel to work place. This is besides reducing the production of sound by the vehicles. This has an added advantage of reducing the consumption of fuel and environmental pollution. Why not the scientists working in these areas think about it