Noise levels in a general surgical ward: a descriptive study.

AIMS AND OBJECTIVES This study was undertaken to measure and analyse levels of acoustic noise in a General Surgical Ward. METHOD Measurements were undertaken using the Norsonic 116 sound level meter (SLM) recording noise levels in the internationally agreed 'A' weighted scale. Noise level data and observational data as to the number of staff present were obtained and recorded at 5-min intervals over three consecutive days. RESULTS Results of noise level analysis indicated that mean noise level within this clinical area was 42.28 dB with acute spikes reaching 70 dB(A). The lowest noise level attained was that of 36 dB(A) during the period midnight to 7 a.m. Non-parametric testing, using Spearman's Rho (two-tailed), found a positive relationship between the number of staff present and the level of noise recorded, indicating that the presence of hospital personnel strongly influences the level of noise within this area. RELEVANCE TO CLINICAL PRACTICE Whilst the results of this may seem self-evident in many respects the problems of excessive noise production and the exposure to it for patients, hospital personnel and relatives alike continues unabated. What must be of concern is the psychophysiological effects excessive noise exposure has on individuals, for example, decreased wound healing, sleep deprivation and cardiovascular stimulation.

[1]  S A Falk,et al.  Hospital noise--levels and potential health hazards. , 1973, The New England journal of medicine.

[2]  B. Papaleo,et al.  Noise and gastric secretion. , 1994, American Journal of Industrial Medicine.

[3]  M. Björkman,et al.  Noise as a contributory factor in the development of elevated arterial pressure. A study of the mechanisms by which noise may raise blood pressure in man. , 2009, Acta medica Scandinavica.

[4]  N. Woods,et al.  Noise stimuli in the acute care area. , 1974, Nursing research.

[5]  B A Hilton.  Noise in acute patient care areas , 1985, Research in nursing & health.

[6]  M. Helton,et al.  The correlation between sleep deprivation and the intensive care unit syndrome. , 1980, Heart & lung : the journal of critical care.

[7]  D. Duval,et al.  Factors involved in the control of fibroblast proliferation by glucocorticoids: a review. , 1986, Endocrine reviews.

[8]  I Cohen.  Stress and wound healing. , 1979, Acta anatomica.

[9]  Marshall La.  Patient reaction to sound in an intensive coronary care unit. , 1972 .

[10]  R. Cantrell.  Physiological effects of noise. , 1979, Otolaryngologic clinics of North America.

[11]  H. Hn,et al.  The behavioral effects of noise on man: the patient with "intensive care unit psychosis". , 1984 .

[12]  Aitken Rj.  Quantitative noise analysis in a modern hospital. , 1982 .

[13]  J. Lucey,et al.  Noise and hypoxemia in the intensive care nursery. , 1980, Pediatrics.

[14]  M Topf,et al.  Noise-induced stress as a predictor of burnout in critical care nurses. , 1988, Heart & lung : the journal of critical care.

[15]  C F Baker,et al.  Discomfort to environmental noise: Heart rate responses of SICU patients , 1992, Critical care nursing quarterly.

[16]  B B Minckley,et al.  A STUDY OF NOISE AND ITS RELATIONSHIP TO PATIENT DISCOMFORT IN THE RECOVERY ROOM , 1968, Nursing research.

[17]  Seidlitz Pr.  EXCESSIVE NOISE LEVELS DETRIMENTAL TO PATIENTS AND STAFF , 1981 .

[18]  L. Hansson,et al.  PROLONGED EXPOSURE TO A STRESSFUL STIMULUS (NOISE) AS A CAUSE OF RAISED BLOOD-PRESSURE IN MAN , 1977, The Lancet.

[19]  R. Snyder-Halpern.  The effect of critical care unit noise on patient sleep cycles. , 1985, CCQ. Critical care quarterly.

[20]  G. W. Grumet,et al.  Pandemonium in the modern hospital. , 1993, The New England journal of medicine.

[21]  J. Thompson,et al.  Noise pollution in the operating theatre , 1990, The Lancet.

[22]  H Dudley,et al.  Perceived noise in surgical wards and an intensive care area: an objective analysis. , 1977, British medical journal.

[23]  M. Collector,et al.  Stress-induced modulation of the immune response. , 1977, Science.

[24]  Wysocki Ab.  The effect of intermittent noise exposure on wound healing. , 1996 .

[25]  A. Benzer,et al.  Noise in the ICU , 2005, Intensive Care Medicine.

[26]  P. Kam,et al.  Noise pollution in the anaesthetic and intensive care environment , 1994, Anaesthesia.

[27]  Turner Ag,et al.  Measuring and reducing noise. , 1975 .